Finding a book about colors that is simple enough for toddlers to grasp each individual color is hard; which is unfortunate. It’s one of the first types of books little ones adore. Penguins Love Colors by Sarah Aspinall does exactly that.
Here are some other titles about colors ML enjoyed as a toddler. All of which were written in the last millennium. Actually, they were all written before I graduated from high school.
Freight Train by David Crews
Planting a Rainbow by Lois Ehlert
Brown Bear, Brown Bear What Do You See? by Bill Martin Jr