James Ellis wrote:
The box below contains a row of random letters. Most of the letters
are coloured white, some are highlighted. Please enter ONLY the RED
HIGHLIGHTED characters in the order in which they appear in the box
below and press "GO".
If it's only red or white letters on a black background, it shouldn't be
a problem in most cases, but it's less than ideal.
I believe red appears grey to red/green colour blind people.
It depends on the form of color blindness. For someone with total color
blindness, then yes, it would appear gray, but this form is very rare.
The most common form is red/green. It that case, depending of the
severity, reds and greens do appear to have color, but depending on
which hue, telling the difference between the two is often very difficult.
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