Olive Brown — Olive Brown shares the muted, earthy green of olives, giving it its name. It belongs to the Brown family: a dark, vivid tone with hex code #645403 and RGB values of 100, 84, 3. Its dominant channel values give it a warm undertone that reads as vivid rather than flat. Olive Brown pairs well with other tones within its own color family for a tonal palette and works nicely in art and illustration palettes. Nearest neighbors: gold.