mitsubishi, on 23 November 2010 - 08:44 AM, said:
When you go there be very careful to take into account the frequencies of the visual spectrum.
You can see red and blue are far apart making them more easily distinguishable by the human brain/mechanism. If you go green you go in their middle, meaning if you don't change one of the others too you make it harder to make them apart.It appears there red+blue are ideally picked.
Just because two colors are close together on the wavelength spectrum doesn't mean that we will have a hard time discerning them. The human eye is actually acutely more sensitive to neon greenish yellow than any other color. You know that florescent neon they use for emergency vehicles and signs now instead of red?
Also... as was stated... color blind people can't distinguish between some colors... red and blue / red and green often meld together... which is why most games that have a "colorblind" option shift the teams to green and yellow... again.. where our eyes are more sensitive I would assume.
In fact, when dealing with colorometry and color spaces, it's more common to rely on the CIE L*a*b color model than the RGB spectrum model to approximate human vision. In that model the colors don't go from red to blue like the rainbow... but are determined by a Luminocity value ( L ) ... then a differentiation between blue and yellow ( *a ) and another differentiation between magenta and green ( *b ). Based on that model... other color choices might make more sense.
At the end of the day... red / blue were chosen, I believe, from all that childhood learning from crayons that says that red and blue are opposite colors (they aren't)... and it's kind of stuck.
"On a long enough time line, everyone's survival rate drops to zero..." --Tyler Durden