Sing songs about colors to your child. Point to colorful objects around the room as you sing so your child learns not only the name of each color, but what it looks like.
Eat colorful foods. Designate one week as "colorful food week," and focus on one color each day. The majority of your food that day should match the color you're learning about. For example, on "yellow" day, your family could eat bananas, pancakes, pineapple and yellow cake. Use food coloring throughout the week to add extra color to ordinary foods. You can make scrambled eggs turn blue, for example, on "blue" day.
Show your child color flash cards. Use flash cards that only show a color or, pick flash cards that show colorful items. Review the cards with your child when you're waiting for the bus, at the doctor's office or before bedtime.
Focus on different shades of the same color. Some children find it difficult to understand that two objects of different color shades can really be the same color. If something is royal blue, for example, and another item is pale blue, the child may think they are completely different colors. To illustrate your point, take your child to a home improvement store and pick up several paint sample cards, which show different shades of the same color. Alternatively, use watercolor to paint a picture with your child. First, add only one or two drops of water to the paints, which makes the color deep and dark. After your child paints for a while, add more water to lighten the color of the paint.