( 125, 133, 137 )
Color family: blue
RAL 820-4 HSL code: 200, 5%, 51%
RAL Effect RAL 820-4 is cool color according to HSL (Hue, Saturation, Lighness) on the color wheel.
Hue - degree on a color wheel from 0 to 360. 0 is red, 120 is green, and 240 is blue.
Saturation is a percenteage value. 0% is a shade of grey, and 100% is the full color.
Lightness is also a percentage value. 0% is black, and 100% is white.