Grey has no hue and very low saturation.
In the RGB color space, the color Grey has the values (128, 128, 128), being composed of 50.2% Red (R), 50.2% Green (G), and 50.2% Blue (B).
In the HSL color space, the color Grey has a hue of 0 degrees, a saturation of 0.0% and a lightness of 50.2%.
In the CMYK color space, Grey is composed of 0 parts of Cyan (C), 0 parts of Magenta (M), 0 parts of Yellow (Y), and 50 parts of Black (K).