NRG block: Crayola's got nothing on us. Below are 18 colors to start with. 3" x 3" split face samples shown in direct sunlight. Do you have a custom color in mind? We can probably make it.

Charcoal with white stone split
Gray split face
Mauve split face
Pinker split face
Goldenrod split face
Charcoal
Livonia split face
Black split face
Hi Tech Tan split
Alfred Buff split face
Regal Red split face
Red split face
Marble Red and Black split
Chocolate split face
Fay's Brown split face
White on White split face
White with mixed stone split
Cream with white stone split

Black Ground Face

4" x 4" sample in indirect sunlight

Black Smooth Face

4" x 4" sample in indirect sunlight

Brown Ground Face

4" x 4" sample in indirect sunlight

Brown Smooth Face

4" x 4" sample in indirect sunlight

Buff Ground Face

4" x 4" sample in indirect sunlight

Buff Smooth Face

4" x 4" sample in indirect sunlight

Gray Ground Face

4" x 4" sample in indirect sunlight

Gray Smooth Face

4" x 4" sample in indirect sunlight

Red Ground Face

4" x 4" sample in indirect sunlight

Red Smooth Face

4" x 4" sample in indirect sunlight

Tan Ground Face

4" x 4" sample in indirect sunlight

Tan Smooth Face

4" x 4" sample in indirect sunlight