Skrayling colour vision
One of the physical characteristics of the skraylings is that their colour vision is very different from humans’; their eyes are sensitive to red and blue light, but they cannot distinguish red from green.
I have therefore put together the following table, based on human models of deuteranopia, to show how they see the colours of the human-visible spectrum. The table is limited to web-safe colours, since those are the only ones I had a colour-blindness chart for.
Because blue is the one colour they see well, it has special importance for them (a bit like red for humans) – hence it is used a lot for ceremonial wear, flags and banners, etc.
||Range of colours seen by normal humans|