How to teach colors to babies?

Colour activities and games! I use plastic bowls (can buy from ikea) in different colours and have shapes and objects/toys in those colours too. Then I play a sorting game with my girls. Place those coloured bowls in a line and have a big basket of coloured objects placed in the middle. My girls will take turns to take out an object from the basket and they have to place them in the matching coloured bowl. Then concurrently, we will repeat the colour everytime the object is placed correctly in the bowl. Or... U can diy colour sorting popsicles too!