The classic game of "I Spy" is a great color-naming game. Decide whether you would like to be "it" all the time or if you think the children could take turns. If you decide to be "it" for the entire game, give them a colored candy if they guess the object correctly. Begin by saying "I spy with my little eye something that is (name color)." Have the children take turns guessing what object you are referring to. Try to keep the game moving and give some help if the guessing is taking too long. To incorporate physical activity, have the children get up and point to the object that they wish to guess.
Help the children make a rainbow. Cut out the colors of the rainbow from colored construction paper for each child before he arrives. You'll get a better arch by cutting out circles and cutting the circles in half. Start with an 8 inch circle and make each colored circle one inch smaller than the previous color. The order of the colors should be red, orange, yellow, green, blue, purple. Help the children glue their colored arches onto a small piece of poster board. Be sure to have them name each color as they glue it on to the poster board. As you talk about the individual colors, ask the children to name other objects that are the same color. Encourage them to tell their parents about the names of the colors of the rainbow when they go home.
Another fun idea for a preschool color-naming game is fishing. This is a game that will delight the children and is easy to make. Begin with a large blue container. Any type of small basket or plastic container is fine. Make colored fish out of different colors of construction paper and glue a small magnetic strip to the back of each fish. To make the fishing pole, use a dowel rod and tie a thin rope to the end. Attach a magnetic strip to the loose end of the rope. Hot glue works well for this. Allow the children to take turns "fishing" for colors. Have each child name the color of the fish that she caught. If they are correct, give them a small piece of candy the same color as the fish they caught and named.
Color-matching games are easy to create and are fun for preschool children. Begin by making a large color mat for the floor. You can either do this on a long strip of banner paper or on several large pieces of poster board. Choose about four colors that you'd like for the children to work on and make a large space on your color mat for each one with either construction paper or by coloring or painting it. Have a small plastic bowl full of colored objects to match the colors of your mat for each child. You can use toys, blocks, crayons, or any other colored object for this game. Have each child place the objects from his bowl on the matching color spot on the mat. Make sure that they say the color names as they lay their objects down on the mat.