Gray rgb(138,138,138) / #8A8A8A

Gray
#8A8A8A
rgb(138,138,138)
hsl(0,0%,54%)
cmyk(0,0,0,46)
hwb(0,54%,46)
hsv(0,0%,54)

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.