There are a number of ways to color concrete but which is best for a particular job? To serve as a guide in selection, this article compares a variety of materials and associated systems for coloring new concrete and describes the advantages and disadvantages of each. Dry shake color hardeners are ready to use products for coloring, hardening, and finishing new concrete floors, patios, pool decks, walks, driveways, and other flatwork. Advantages (compared with integral color products) are color can be made intense without excessive use of pigments because color is concentrated near the surface and the porland cement and well-graded fine aggregate ingredients of the dry shake supply additional wear-resistant materials to the concrete surface. The disadvantage is except for such limited areas as stair risers and curbs, color hardener is practical only on jobs where virtually all of the surfaces are nearly horizontal. It should not be used on large vertical surfaces. The second method for coloring concrete is by using a colored admixture. Advantages are the placing and finishing techniques needed are essentially the same as those for uncolored concrete. Greater care must be exerted but special skills are not required and integrally colored concrete may be used in both vertical and horizontal applications. The disadvantage is in flatwork the surface is relatively little different from uncolored concrete in wear resistance, whereas dry-shake color surfaces are more dense and wear-resistant. The third method of coloring concrete is by addition of mineral oxide pigments directly to the concrete. The advantage of using pigments rather than pigmented admixtures in concrete is that pigments are usually less expensive. Lastly, a number of colored cements are available from various manufactures. Advantages are colored cements are easy to handle and batch when bulk storage is used and costs are generally low. The disadvantage is the only one color is normally available and special shades are difficult to obtain.