Darkgray rgb(153,153,153) / #999999

Darkgray
#999999
rgb(153,153,153)
hsl(0,0%,60%)
cmyk(0,0,0,40)
hwb(0,60%,40)
hsv(0,0%,60)

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.