Periwinkle Blue — Periwinkle Blue is a distinctive shade whose name reflects its overall visual character. It belongs to the Blue family: a light, vivid tone with hex code #8F99FB and RGB values of 143, 153, 251. Its dominant channel values give it a cool undertone that reads as vivid rather than flat. Periwinkle Blue pairs well with other tones within its own color family for a tonal palette and works nicely in packaging design. Nearest neighbors: cobalt.