Question

a) how color blind distinguish colors?what are the interface design rules for color blinds?​

Answer 1

Answer:

Instead of seeing green and red as distinct colors, the person sees them as being very similar, thus the resulting color confusion and other frustrations. Color blindness is caused by a change or reduction of sensitivity of one or more of the light-sensitive cone cells in the eye.

Two simple rules about contrast and color

First, good contrast helps a lot. The more contrast, the better the colorblind can see the difference between the two items. Second, never use color alone to convey information or indicate action. Always provide alternatives in the form of text, icons, or other indicators.

Answer 2

Instead of seeing green and red as distinct colors, the person sees them as being very similar, thus the resulting color confusion and other frustrations. Color blindness is caused by a change or reduction of sensitivity of one or more of the light-sensitive cone cells in the eye.

First, good contrast helps a lot. The more contrast, the better the colorblind can see the difference between the two items. Second, never use color alone to convey information or indicate action. Always provide alternatives in the form of text, icons, or other indicators.

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