Freelance colorist Andreas Brueckl has some great tutorials for colour grading using Assimilate Scratch. This whirlwind tutorial reveals the process he used for a TV commercial which involved a lot of complex alpha matte based grades. This tutorial gives you some idea of the power and simplicity that Scratch can provide.

Assimilate Scratch Colour Grading Tutorials

Andreas also has a more in-depth tutorial on creating a monochromatic look in Scratch.

Assimilate also have a wealth of tutorials on their website which I’ve blogged about here.