Copper
Copper (#C68346) is a true orange with an earthy character. It leans grounded and natural, the kind of color that plays well with wood, clay, linen, and warm neutrals. Its HSL profile (29°, 53%, 53%) places it in the balanced band at a mid lightness. It works across type, buttons, and borders, saturated enough to feel deliberate but balanced enough to not fight the rest of the palette. For a confident two-color system, pair it with its complementary azure. For something softer, pull in its analogous neighbors on either side of the wheel. The warm red-brown of freshly polished copper metal. Over time the surface oxidizes — first to dull brown, then (in damp air) to the blue-green patina that covers every aged bronze statue and old cathedral roof.