Here is our lovely International Colour Wheel. Basic principles of mixing primary colours into secondary. Also the addition of other hues in the spectrum, shades and tones.
This article when fully published will introduce neutralising/opposite colours, and various complementaries. We will also further explore additive colour (RGB) and subtractive (CMYK).
This is a bit of a placeholder for the time being. Any questions you would like me to answer in the process of writing this article, drop me a line @clarewaterfall