Obelisk — Obelisk belongs to the gray color family, but with a cool, bluish-green undertone. Due to its low saturation and muted appearance, it is often described as a grayish-blue or deep slate gray. The slight elevation of the green and blue values over the red gives it a cool, slightly blue-green or cyan tint. Its low saturation and moderate lightness result in a deep, dusky shade rather than a vibrant color.