WordNet sense 1 (having a variety of colors):

variegated, varicoloured

WordNet sense 2 (characterized by variety):

varied

WordNet sense 3 (having sections or patches colored differently and usually brightly):

calico, motley, multicolored, piebald, pied, multicolor, multicolour, multicoloured, painted, particolored, particoloured

WordNet sense 4 (having color or a certain color; sometimes used in combination):

colored, colorful, coloured