Flat Blue — Flat Blue 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 #3C73A8 and RGB values of 60, 115, 168. Its dominant channel values give it a cool undertone that reads as moderately saturated rather than flat. Flat Blue pairs well with other tones within its own color family for a tonal palette and works nicely in interior accent walls. Nearest neighbors: cobalt.