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Black on light grey causes less eyestrain than black on white. http://ergonomics.about.com/od/eyestrain/a/reduce_contrast.htm http://ergonomics.about.com/od/ey

• dredmorbius 13y ago
  Two problems with that: 1 Monitors vary greatly in their color intensity. 2 For emissive rather than reflective displays (that is, monitors rather than paper), increasing ambient light decreases contrast. I've found a huge number of websites are very unreadable not only on mobile devices (which tend to get used out-of-doors) but on desktop and laptop screens if there's a high level of indoor lighting. Worse if there's low-angle early-morning or late-afternoon sun.
  • cmccabe 13y ago
    That's why devices have adjustment knobs and settings that let you adjust the contrast, if you're using it in some unusual situation.