A concentric color wheel radiates outward from a central triangle, mapping the full spectrum in graduated bands of red, orange, yellow, green, blue, and violet against a weathered cream ground. Fine radial lines and delicate text annotations circle the composition, creating a scientific yet meditative visualization of color theory that feels both historical document and abstract study. Built from double-wall stainless steel and made to order, holding 20 ounces with a snap-on lid, a standard-cup-holder fit, and wraparound artwork. Your commute carrying original art instead of another branded tumbler.