cpt-city

Peter Kovesi

Rainbow colour-schemes. From the ColorCET site:

Rainbow colour maps are widely used but often misused. It is suggested that they be avoided because they have reversals in the lightness gradient at yellow and red which can upset a viewer’s perceptual ordering of the colours in the colour map. However, they are attractive and perhaps can have a legitimate use where the main aim is to differentiate data values rather than communicate a data ordering. I believe the rainbow colour maps presented here have minimal badness though they do have localised perceptual flat spots at yellow and red.