Gray rgb(125,125,125) / #7D7D7D

Gray
#7D7D7D
rgb(125,125,125)
hsl(0,0%,49%)
cmyk(0,0,0,51)
hwb(0,49%,51)
hsv(0,0%,49)

Color Shades in HSL model

S(Saturation) = 0% in this case we cannot get H(Hue) range. Cause it should be the same color, due to HSL color system.
+/- 10% shift for S(Saturation) color axis in HSL color model+/- 10% shift for L(lightness) color axis in HSL color model.