Things get more interesting when you assemble swatches into a color map. Using people’s identifications of swatches, we can identify one part of the color map as orange, another as green, and so on.

When Mandela walked out of prison, a whole continent rejoiced. When the long lines of South African voters snaked out in the sunshine, Africa cheered. But is the honeymoon over? Although South Africa ...

South Africa was to be the rainbow nation. But, a rainbow is a beautiful but fragile thing. For it to persist conditions have to be nurtured. This congenial evolution did not happen.

We might be told that color has something to do with light, or even be shown a prism, through which light refracts to produce a rainbow. This is true, but the human brain and visual system can ...

But actually, black is a color, as well as white — they are achromatic colors, meaning those lacking chroma (a level of vividness or mutedness, similar to saturation) and hue (the general family ...