Dark Grey — Dark Grey is a distinctive shade whose name reflects its overall visual character. It belongs to the dark grey or neutral black color family. It is a very deep, muted shade that is often known by the names Onyx or Tuatara: a dark, nearly neutral tone with hex code #363737 and RGB values of 54, 55, 55. Its dominant channel values give it a cool undertone that reads as nearly neutral rather than flat. Dark Grey pairs well with natural wood tones and warm beiges and works nicely in branding and logo design. Nearest neighbors: slate.