Not quite. I'm talking about monochromacy, which includes achromatopsia, but casts a slightly wider net. Anyway, my main point is that although I'm technically

Not quite. I'm talking about monochromacy, which includes achromatopsia, but casts a slightly wider net. Anyway, my main point is that although I'm technically colour blind, unless you're using particularly muddy shades of red and green, or particularly small splashes of colour, it doesn't matter too much. The key goal is to avoid colour-dependent design, but not to be afraid of colour either.