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Rather than RGB values, color perception is better represented as three alternative dimensions, one being darkness, and the other two being the color wheel. The other thing is that human perception does not linearly follow RGB values, so you have to apply some empirically determined transformations. Color differences are then proportional to the Euclidean ...


Keeping in view one of Nielsen heuristic "Match between system and the real world". Red colour is perceived to be for ending anything in progress in real world, for example in tape recorders to stop recording stop button is used which have red dot or circle for identification. Similar, is the case with the televisions in which red colour identifies the ...

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