Cadmium Scarlet is a warm red, meaning it leans toward orange. Cadmium colors are opaque and that makes this color excellent for demonstrating how to create a strong ‘shadow in bright sun’ .
First fire hydrant is painted with a wash of cadmium scarlet. Next, to show the shadow on the hydrant Permanent Alzarian Crimson is added to darked the hue. To complete the illusion, the cast shadow on the ground is achieved by adding a touch of Ultramarine Blue to the mix. Viola! The fire hydrant looks to be in full sun.