Red and yellow make orange. Red and blue make purple. Yellow and blue make green. The third set of colours the tertiary colours are made when we mix primary and secondary colours together.

And add some yellow. Pup: What happens when we mix them together? Blue and yellow make green! Kit: What will happen if we mix yellow and red? Yellow and red make orange! Pup: What will happen if ...

You might not have noticed if you’re not a digital artist, but most painting and image apps still get color mixing wrong. As ...