RAL Classic#18171C
Black Blue
RAL 5004These values are sRGB approximations. RAL colors are defined colorimetrically — for exact color matching in print, paint, or coatings, always verify against a physical RAL color chip.
CSS Values
HEX#18171C
RGBrgb(24, 23, 28)
HSLhsl(252, 10%, 10%)
HSL (modern)hsl(252deg 10% 10%)
OKLCHoklch(20.8% 0.0099 295deg)
Tints & Shades
Color Harmonies
complementary
triadic
analogous
split Complementary
tetradic
Contrast
AaText on white
Ratio: 17.82:1AA: PassAAA: PassAA Large: Pass
AaText on black
Ratio: 1.18:1AA: FailAAA: FailAA Large: Fail
Other RAL blue colors
5000Violet Blue5001Green Blue5002Ultramarine Blue5003Sapphire Blue5005Signal Blue5007Brilliant Blue5008Grey Blue5009Azure Blue5010Gentian Blue5011Steel Blue5012Light Blue5013Cobalt Blue5014Pigeon Blue5015Sky Blue5017Traffic Blue5018Turquoise Blue5019Capri Blue5020Ocean Blue5021Water Blue5022Night Blue5023Distant Blue5024Pastel Blue5025Pearl Gentian Blue5026Pearl Night Blue