This video is great! It's very educational, introducing the primary colors and showing how to mix them to create secondary colors. It then shows the colors of the rainbow and reviews all the colors learned.

Nakagami Design: COLOR BEAR / Mix the colors. What color will I get? / English version

Another great educational color mixing video! 

Elf Kids Videos: Learn Colors - Preschool Chant - Colors Song for Preschool by ELF Learning - ELF Kids Videos

Color Chants! A simple yet effective method to reinforce color vocabulary!

Club singalong: "Colors Chant" | Teaching Colours to Children in English, Kindergarten Education, Baby Chant Video

Another color chant video you can use!

Maple Leaf Learning: Learn Colors | Talking Flashcards

A straightforward and no-nonsense video introducing colors as flashcards. 

Songs

KidsTv123: Colors Song 2

A Nice melody and relaxing song about what colors you like.

Maple Leaf Learning: What Color Is It? (Fruit) | Simple Color Song for Kids

A fun short song combining fruits and colors. "Lemon, lemon. What color is it? It's yellow, yellow, yellow!"

Dream English Kids: What Color Is it? Song | Learn 11 Colors | Learn English Kids

Great simple song that will get stuck in your head...."What color is it? What color is it? It's pink, it's pink", getting faster towards the end. You can point or touch items of the color being sung as you sing to make it more fun and interesting. 

Fun Kids English: Colors Touch Song | Colors & Phonics for Kids | Fun Kids English

Great color song for young learners which also practices the beginning phonic sounds. Active and fun as you search and touch the colors being sung.  

Rainbows Colors Song | The Singing Walrus

Most songs I don't show the video, but this song works better if you sing and watch with the video together as the lyrics actively asks what do you see from the item in the video. Enjoy!

Games

Little Dreamers Education: Colors For Kids | Color Guessing Game | 4K

This video Introduces colors using fun objects and vocabulary, followed by a fun game where students guess the color of objects from four multiple-choice options. This game provides a great opportunity to pause, repeat color vocabulary, and help students build confidence guessing the answers. 

Games4esl: What Color Is It? | Color Game For Kids

Similar to game to the above video. Be sure to pause and repeat the colors. Have fun!

Games4esl: Color Game For Kids | English Classroom Games

This video gives you two choices of colors. However, it's a bit more difficult to guess correctly as the objects have less inference about which colors they should be. Remember to pause and repeat the vocabulary, and give kids the chance to choose which color they want to guess. It can be more fun having only two choices with little inference, as it is a bit more competitive.  

It's a song but also a game that needs the video to be seen as at parts you have to guess the colors being shown. "This is a bear, it looks like this, what color is it?"

Danny Go!: “The Color Dance Game!” 🌈 /// Would You Rather Brain Break | Danny Go! Songs for Kids