About RGB colour and colour perception
- The human eye, and so visual perception, is tuned to the visible spectrum and so to spectral colours between red and violet.
- RGB colour is a model used to reproduce colour in a way that matches perception.
- An RGB colour wheel helps to simulate:
- The effect of projecting lights with wavelengths corresponding to the three primary colours, red, green and blue onto a neutral-coloured surface.
- The additional colours produced by mixing adjacent pairs of colours such as adjacent primary, secondary, tertiary colours etc.
- Every imaginable colour can be produced by the RGB colour model.
- Remember that the RGB is an additive colour model used when mixing light of different wavelengths.
- The CMYK subtractive colour model is often used when mixing paints, dyes and pigments.