5
votes
What is the optimal contrast ratio for best readability?
Short answer
Higher contrast increases readability.
Background
In a series of papers under the umbrella "Psychophysics of Reading" (link is to first paper in the series of five) the authors ...
- 20.8k
4
votes
What is the source for the W3C's Contrast Ratio formula?
The W3C link provided by Mark in a comment on "Understanding WCAG 2.0" provides the source for the contrast ratio formula under the "Notes on formula" section.
The formula (L1/L2) ...
- 3,522
3
votes
Is ignoring messages a learned behavior?
Several explanations could apply crossing psychology and linguistics:
Cognitive: It is perhaps bold to suggest that there could be a perfectly constructed error message. Reading comprehension and ...
- 1,748
2
votes
What is the source for the W3C's Contrast Ratio formula?
Short Answer
The WCAG 2.x addition of 0.05 to the simple ratio calculation was intended to serve two purposes:
1) Prevent the ratio from calculating as infinite when one of the colors was black (zero)....
- 121
2
votes
Accepted
Why do many people play Candy Crush without ever buying anything while some spend all their money on it?
Summary: From the few papers I've looked at, microtransaction-based games tend to work as suspected/designed. That is, games which rely on frustration to get the player to spend money (like Candy ...
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