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Dan Rubin's SuperfluousBanter

Suffering from chronic idiocy since 1977

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Contrasting Vision

In one of my pre­vi­ous posts I encour­aged peo­ple to aban­don #000 as copy text colour in favour of lighter shades such as #333 or even #666, for exam­ple. In ret­ro­spect there are two things wrong with that post. First, I should not tell peo­ple what, or what not to do, even if my words were meant as a some­what ironic, very much tongue-in-cheek state­ment. It is never my inten­tion to com­mu­ni­cate with such an atti­tude. Sec­ond, I wasn’t jok­ing — even if ironic, I was some­what seri­ous. But was I right to make such a statement?

In all hon­esty I think I was wrong, to some degree. I should note that there’s a dif­fer­ence between choices you make as part of your per­sonal web site as opposed to com­mer­cial projects. A per­sonal web site is exactly that: per­sonal. You get what you pay for. The choices you make are yours and I’m cer­tainly not the one that’s going to tell you what to change. Com­mer­cial projects on the other hand need to fol­low best prac­tices, such as good read­abil­ity and suf­fi­cient con­trast (among many other things, of course.)

Receiv­ing one com­ment about a par­tic­u­lar issue is not going to val­i­date a change, per se. How­ever, a sequence of com­plaints reveal­ing that con­trast of body text is insuf­fi­cient, asks for a sim­ple and straight­for­ward solu­tion: increase con­trast, à la minute. As a designer I have noth­ing to gain from stand­ing by my orig­i­nal deci­sion. Design is an iter­a­tive process of trial and error. Ide­ally, you hope to solve all prob­lems and pos­si­ble issues before you launch a web site, but that’s not always pos­si­ble. There’s always a point where you just need to launch, period.

Now, do I really think you should not use #000 as a colour for copy text? Of course not. That said, as a designer I con­sider issues of style. In my opin­ion con­trast and colours are both essen­tial fac­tors of what con­sti­tutes style. Nonethe­less it is impor­tant to find a bal­ance between style and usabil­ity — obvi­ously, con­tent is going to suf­fer if not read­able. For the sake of this dis­cus­sion I’m going to include a quick and dirty user test, ask­ing for your feedback.

Vari­able copy text colour and con­stant back­ground colour (#fff) — exam­ples 1–4
Con­stant copy text colour (#000) and vari­able back­ground colour — exam­ples 5–8

So, what exam­ple (1–8) do you find most read­able, or what exam­ple is not accept­able? State your find­ings in the com­ments, don’t for­get to men­tion the type of mon­i­tor you’re using (CRT, flat­panel, lap­top, etc.) Please realise that this is just a quick assess­ment, I’m not try­ing to con­clude to any­thing per se. Just test­ing for fun and insight. Besides I have abstracted from an assort­ment of other vari­ables and used only raster val­ues of black, but the same prin­ci­ple applies to other colours.

This item was posted by Dan Rubin on Saturday, May 22nd, 2004.

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51 comments on “Contrasting Vision”

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  1. Posted by Mary on Saturday, May 22nd, 2004.

    Most read­able to me: #1 (con­trast) & #2 (contrast2).

    CRT mon­i­tor.

    :)

  2. Posted by Ben on Saturday, May 22nd, 2004.

    CRT here: con­trast #2 and contrast2 #3

  3. Posted by Joost on Saturday, May 22nd, 2004.

    #1: exam­ple 2

    #2: exam­ple 2

    CRT mon­i­tor..

  4. Posted by Ken on Saturday, May 22nd, 2004.

    #1, #2, and #6. Too much con­trast hurts my eyes.

    CRT (1280x1024, 32-bit) w/ GeForceFX 5200 Ultra.

    I men­tion my video card because it’s a fact that some cards ren­der text bet­ter than others.

  5. Posted by Hannes on Saturday, May 22nd, 2004.

    Fla­tron L1710B: Exam­ple 4! (contrast2.html).

  6. Posted by Douglas on Saturday, May 22nd, 2004.

    CRT,

    #1: 1,2,3 fine, 4 too light — 2 is the best.

    #2: all fine, again I like 2 the most.

    Over­all, it has to be #1.2 for best of best.

    Dou­glas

  7. Posted by Mike D. on Saturday, May 22nd, 2004.

    Hon­estly? They are all plenty read­able and you are talk­ing about such sub­tle con­trast changes that I doubt any one vari­a­tion is *mea­sur­ably* more read­able than any of the oth­ers. I am on a Power­book with OS X.

    What mat­ters 1000 times more to me is type­face choice, lead­ing, col­umn width, and over­all color scheme. I think it’s a lot more ratio­nal to argue that peo­ple should always increase lead­ing slightly than always decrease con­trast slightly. Loose lead­ing is almost always more read­able than the browser’s default leading.

  8. Posted by Sykil on Saturday, May 22nd, 2004.

    Exam­ples 1 and 2 are the most read­able, in my opinion.

    I have an LCD with and old 8MB graph­ics card.

  9. Posted by Rajeev Sharma on Saturday, May 22nd, 2004.

    1, 2, 5, 6, and 7. I think I like 6 the best.

    17″ Pana­sonic Pana­Sync CRT, 1024x768@32bpp, ATI Rage128 w/ 32MB

    Hon­estly, they’re all read­able. It’s really a test of per­sonal pref­er­ence, and how sen­si­tive your eyes are to con­trast. I’m sure there are peo­ple who are com­forable with #777 on #999 out there.

  10. Posted by Weyert de Boer on Saturday, May 22nd, 2004.

    I will go for the one with black, oth­er­wise I have trou­ble reading.

  11. Posted by Didier Hilhorst on Saturday, May 22nd, 2004.

    Mike D. — When it comes to my per­sonal pref­er­ence regard­ing con­trast I com­pletely agree with you. But from my pre­vi­ous post on the mat­ter it seems that some of the com­men­tors do think dif­fer­ently. Fur­ther­more, it is abo­lutely true that con­trast is not the only fac­tor of impor­tance when read­abil­ity is con­cerened, and I agree that other issues you men­tion might even be of more impor­tance, but that’s not the sub­ject of this post, as such.

  12. Posted by Marten on Saturday, May 22nd, 2004.

    I think num­bers 1.2 and 2.2–2.3 are best. I have to agree that the extremes are less readable.

    Toshiba Satel­lite Pro M10, Cleartype.

    How­ever, on my Philips 170C4 LCD (set in SRGB color mode), I’d say 1.1 and 2.1–2.3.

  13. Posted by Neil on Saturday, May 22nd, 2004.

    #2 and #7 on my PowerBook.

  14. Posted by Bas on Saturday, May 22nd, 2004.

    To me on an IBM Thinkpad TFT with Cleartype, 2 & 2 were best.

  15. Posted by Will on Saturday, May 22nd, 2004.

    2&2 def­i­nitely. iiyama 19″ CRT

    But I don’t like it what­ever the colours in that size and typeface.

    IANAT(ypographer) :)

  16. Posted by Rabbit on Saturday, May 22nd, 2004.

    Exam­ples 2 and 8 are the eas­i­est to read for me.

    Of exam­ples 1–4, 2 is the most aes­thet­i­cally pleasing.

    Of exam­ples 5–8, 6 is the most aes­thet­i­cally pleasing.

  17. Posted by Egor Kloos on Sunday, May 23rd, 2004.

    In both cases I’d go for option #2 on my 19inch LCD. Both have strong con­trast and lean away from absolute con­strast. Effec­tive and pleas­ing to ‘my’ eye.

    Typog­ra­phy is indeed gov­erned by many fac­tors. Color just being one of them alas this is the only one we can con­trol within rea­son­able mea­sure. Height and line height are so within the realm of our con­trol. Other typo­graphic con­trol is pretty poor or non exist­ing when it comes to web­pages. Thus good typog­ra­phy is still noth­ing but a dream, unless you stick to images for your text. But that too kind of sucks.

  18. Posted by Martin Orvad DK on Sunday, May 23rd, 2004.

    I’d say exam­ples 2 and 6 seems eas­i­est to read.

    Eizo 21″ CRT, Matrox Parhelia

    By the way, did this test come to mind after you saw Zeld­mans re-design? ;o)

  19. Posted by pix on Sunday, May 23rd, 2004.

    sec­ond on both using an apple 20″

    4 is read­able, but I don’t think it would be read­able for long documents.

  20. Posted by Niket on Sunday, May 23rd, 2004.

    Con­trast 1: Most read­able #2 > #1 > #3 » #4

    Con­trast 2: #5 = #6 = #7 > #8.

    Flatscreen LCD monitor.

    I won­der if the results would be dif­fer­ent with a dif­fer­ent font / size.

  21. Posted by Stewart on Sunday, May 23rd, 2004.

    With­out ques­tion, #1 and #2 are the most read­able. But they are not nec­es­sar­ily the pret­ti­est. The IBM logo might be more “read­able” if it didn’t have alter­nat­ing lines deleted from it, but it cer­tainly wouldn’t be a cre­ative logo (not that IBM’s logo is nec­es­sar­ily a cre­ative logo… but you can see what I’m get­ting at).

    The best look­ing results will come when the cho­sen con­trast is well-suited to the design’s pre­sen­ta­tion, color scheme, and separation.

    I’m using a 19″ Trini­tron CRT.

  22. Posted by Sean on Sunday, May 23rd, 2004.

    #1 an #2 are the most read­able, #3 and #4 start to get washed out.

    #5 to #8 are equally read­able, though only with #7 and #8 can I really see the back­ground color.

    Dell Insp­iron 8100 1400x1050 , ClearType, 32bit color LCD

    I get sim­i­lar results on the other LCDs I work with, although the Apple LCD seems to present color bet­ter than either the Gate­ways or the Dell Inspiron

  23. Posted by Tim Parkin on Sunday, May 23rd, 2004.

    Heh!!

    We extended this to which is more read­able for body copy, arial or ver­dana. The wierd thing was that a lot of peo­ple chose 100 per­cent con­trast for one font and 80 per­cent con­trast for the other.

    ver­dana 80 percent

    ver­dana 100 percent

    arial 80 percent

    arial 100 percent

    More thoughts would be cool.

    Tim, “non 100 per­cent body con­trast web design ltd”

  24. Posted by Thomas Baekdal on Sunday, May 23rd, 2004.

    Exam­ple 2 (in all instances) — Lap­top, Win­dows (ClearType) / Stu­dio Dis­play, Mac OS X.

  25. Posted by Jeroen on Sunday, May 23rd, 2004.

    I feel that the ver­sions with a non-white back­ground are eas­ier to read. Exmaples 1 and 5 (to fol­low your num­ber­ing) drop out imme­di­ately. — I guess you have included those as a ref­er­ence. Exam­ple 4 is rel­a­tively hard to read, fol­lowed by exam­ple 8. My sequence would look like (from good to ‘evil’ ;-):

    6 — 7 — 2 — 3 — 8 — 4 — (1 / 5)

    I work in 24bit color on a Sony Trini­tron CRT monitor.

    @Tim: I’m not at all sur­prised that Ver­dana would score to be leg­i­ble at for instance 80% grey, where Arial could eas­ily need 100% black. Ver­dana has a big­ger x-height, which ren­ders it more leg­i­ble at screen read­ing font sizes. Thus the con­trast between text and back­ground could be less­ened while keep­ing leg­i­bil­ity at a level com­pa­ra­ble to black Arial text.

    @Sean: it is a known lim­i­ta­tion of LCD dis­plays (even the good ones) that sub­tle shades near white and near black are lost. That’s why you would typ­i­cally see CRT mon­i­tors still being used for crit­i­cal pub­lish­ing work (black-and-white pho­tog­ra­phy, color accuracy).

  26. Posted by Vladimer Shioshvili on Sunday, May 23rd, 2004.

    per­sonal pref­er­ence — #2 from both sets… back­ground does not really make dif­fer­ence to me.

    oth­ers would be a bit too tir­ing for eyes if con­tent stretches beyond cou­ple paragraphs..

    again, that’s my opinion..

    Sony Trini­tron CRT

  27. Posted by Steveg on Sunday, May 23rd, 2004.

    My work mon­i­tor is a Com­paq S700 With a gamma of around 2.5.

    #1 is the best of the first page. #2 & #3 are usable and I would not com­plain about them. #4 is start­ing to get dif­fi­cult to read.

    #5 is the worst of the sec­ond page. #6 and #7 look almost iden­ti­cal to me. #8 is much more rest­ful un the eyes.

  28. Posted by yafujifide on Monday, May 24th, 2004.

    I’m using a lap­top, and I find that the high­est con­trast is the best. #1 and #4 are prefer­able. How­ever, on a CRT, the more con­trast, the more it hurts my eyes. I pre­fer a slightly off-white back­ground and slightly off-black text. #2 and #5 are my favorites, in that case.

  29. Posted by Steveg on Monday, May 24th, 2004.

    My home mon­i­tor is a LG L1710S TFT with a gamma of around 2.2.

    I am also run­ning Linux with­out well anti-aliased fonts.

    #1 & #5 are hard to read and show fring­ing like an over com­pressed JPEG.

    #2 is bet­ter, #3 and #4 are good.

    #6 is bet­ter, so is #7, and #8 is good.

  30. Posted by Chirtsoph Wagner on Monday, May 24th, 2004.

    Exam­ple 1 (Con­trast) and Exam­ple 2 (con­trast 2)

    TFT 19″ 1280*1024

  31. Posted by Phil Wilson on Monday, May 24th, 2004.

    1 and 6 (CRT). By a coun­try mile.

  32. Posted by Ronald van der Wijden on Monday, May 24th, 2004.

    Con­stant white back­ground: 1 too much con­trast, 4 to lit­tle; I like 3 best, although 2 isn’t bad either.

    Con­stant black text: 1 is out again, 2 not too hot either, 3 is agree­able, but I like 4 the best. Go figure.

  33. Posted by Ronald van der Wijden on Monday, May 24th, 2004.

    Dang! For­got: this was on a 15″ CRT.

  34. Posted by Jonathan Davis on Monday, May 24th, 2004.

    #2 and #6 on 21″ Nokia 445Xpro CRT mon­i­tor w/Nvidia 5950U graph­ics. I have always thought #333 is the per­fect color on white. I per­son­ally find it a lot eas­ier to read for an extended period of time.

  35. Posted by Denis D. on Monday, May 24th, 2004.

    I think that ask­ing peo­ple what com­bi­na­tion they pre­fer may be a disservice.

    Mon­i­tor cal­i­bra­tion should be taken into account — for exam­ple most mon­i­tors are run­ning @ 9300k (gamma 2.2) and gives white a bluish colour.

    Of course I believe that you should look at a web site at the clos­est to what end user will see. Nam­ing monitors/graphic cards will not help as much as a prop­erly cal­i­brated monitor.…

  36. Posted by Jeff Croft on Monday, May 24th, 2004.

    I like num­ber two best on both exam­ples, personally. :)

    Jeff

  37. Posted by Sean Devine on Monday, May 24th, 2004.

    #1: 2

    #2: 2

    19″ CRT

    If forced to choose between 1 (#000) and 4 (light gray) in the vari­able text sam­ple set, I would choose 1 (#000). Nos. 3 and 4 were just too light for my lousy eyes.

  38. Posted by Jennifer Grucza on Monday, May 24th, 2004.

    #4 is pretty bad–it makes me work harder to read it. But #1 might be too much contrast–almost as if the text were flick­er­ing. #2 and #3 are fine. I think I pre­fer the non-white back­grounds, though, par­tic­u­larly #7 and #8.

    Viewed on a Dell Insp­iron laptop.

  39. Posted by Jeroen on Tuesday, May 25th, 2004.

    It’s really inter­est­ing to see the dif­fer­ences between the var­i­ous obser­va­tions. What catches my eye most:

    - TFT dis­plays typ­i­cally ren­der the exam­ples brighter than CRT monitors.

    - High con­trast on a TFT results less often in fatigue com­pared to CRT (this obvi­ously is a result of the ‘flick­er­ing’ effect of CRTs).

    - There appears to be a slight pref­er­ence for black text on a slightly off-white back­ground over grey text on a white back­ground — or am I wrong in this conclusion?

  40. Posted by Nathan on Tuesday, May 25th, 2004.

    Num­bers two, three and eight were by far the most read­able, and in that order from most– to least-readable. This was viewed on a CRT mon­i­tor, run­ning at 1600x1200. I also have poor eye­sight (though I find higher resolutions–and hence, smaller type–more read­able and more aes­thet­i­cally pleasing.)

    Exam­ple one has, by far, too much con­trast. I can read it, though I would tend to skip it because it’s almost painful to read. The sec­ond exam­ple is much bet­ter. The third, though even eas­ier on the eyes, is a bit of a strain to see clearly. The fourth just sim­ply looks fuzzy.

    While I can eas­ily see the dif­fer­ence between exam­ples five through eight, the first three of those are just as dif­fi­cult to read as exam­ple one. Exam­ple eight is much eas­ier on the eyes, but I’d still rather be read­ing exam­ple two or three.

    I thought I’d also add that I’m col­or­blind. While that doesn’t pose a prob­lem with the col­ors in the exam­ple (we’re look­ing at what I believe are black, white, and a few shades of grey), many col­or­blind peo­ple (myself included) have a great deal of trou­ble between col­ors that con­trast a great deal. Too much con­trast, or too many col­ors, can cause a cer­tain amount of con­fu­sion to many col­or­blind peo­ple. That’s how I feel when read­ing the exam­ples with a lot of con­trast (one, and five through seven.) I’m over­whelmed by the con­trast, and tend to focus more on that than I do the con­tent itself.

    Apolo­gies for the overly-long com­ment, but I hope it helps.

  41. Posted by Didier Hilhorst on Tuesday, May 25th, 2004.

    Nathan: Thanks for your com­ment, and please don’t apol­o­gize for adding use­ful infor­ma­tion to this thread. I always wel­come everone’s thoughts on top­ics, espe­cially if I’ve asked directly for feedback.

    In the same vein I’d like to thank every­one that took the time (and will do so in the future) to respond to my quick user test. Of course we can’t con­clude to any­thing in par­tic­u­lar, unfor­tu­nately. I can see some trends and major­ity pref­er­ences. I’ll leave every­one to decide what’s best and let the feed­back speak for itself.

    Over­all this has been quite an inter­est­ing thread. I think I might ask for feed­back more often. Even if only a lim­ited amount of peo­ple respond (in terms of sta­tis­ti­cal sig­nif­i­cance) there’s always use­ful infor­ma­tion for every­one to take away. Besides, it’s a good way to “keep it real” and stay in touch with the audi­ence. Thanks guys and girls!

  42. Posted by Ben on Tuesday, May 25th, 2004.

    #2 & #2

    iBook full bright­ness run­ning Safari

  43. Posted by madlon on Wednesday, May 26th, 2004.

    #2 & #3, respec­tively. LCD mon­i­tors, Sony flat panel and my iBook.

    The black on white makes me want to claw my eyes out of my skull.

    Most of the oth­ers make me want to curl up in a field of kit­tens and dream of gumdrops.

  44. Posted by Aaron Suggs on Wednesday, May 26th, 2004.

    Exam­ple #2 in both cases, using an Apple Stu­dio Display.

  45. Posted by Cam on Wednesday, May 26th, 2004.

    #2 in both cases, using LCD (19″ desk­top, 15″ laptop).

  46. Posted by AkaXakA on Thursday, May 27th, 2004.

    # 4 (background)

    # 2 (foreground)

    On a 15″ laptop.

    #666 is prac­ti­cally unreadable.

  47. Posted by Jack on Thursday, May 27th, 2004.

    #2 & #3

  48. Posted by Richard@Home on Friday, May 28th, 2004.

    I (very) rarely use an extreme of *any* colour. The prob­lem with top­ping out (FFF) or bot­tom­ing out (000) is that you then strug­gle to when you need a shadow/hightlight shade.

  49. Posted by missha on Friday, May 28th, 2004.

    I pre­fer the exam­ple #2, seen in a span­ish 17″ CRT :)

    thanks for the exper­i­ment, and pub­lish your results, please

  50. Posted by jose on Friday, May 28th, 2004.

    #1: exam­ple 1

    #2: exam­ple 1

    15″ xga tft lcd mon­i­tor on my Acer laptop

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