Should a 2 year old know colors?

2 year olds can understand the concept of color and may begin to recognize and learn about colors as early as 18 months.  Learning colors can be a fun activity for you and your child to practice together.   Start with one color at a time, use flashcards to show your child a color and have them say the name with you. As your child begins learn the names of more colors, be sure to go back and review the ones they have already mastered. Play color games by showing your child a color flashcard and asking them to find an object around them that is the same color.