Dark Periwinkle — Dark Periwinkle is a distinctive shade whose name reflects its overall visual character. It belongs to the Blue family: a medium-toned, moderately saturated tone with hex code #665FD1 and RGB values of 102, 95, 209. Its dominant channel values give it a cool undertone that reads as moderately saturated rather than flat. Dark Periwinkle pairs well with complementary tones from the opposite side of the color wheel and works nicely in branding and logo design. Nearest neighbors: cobalt.