#331B18#331B18

#331B18 is a dark, muted red. Relative luminance 0.016; OKLCH L 25.4% C 0.039 H 27.7°. Best body text is #FFFFFF at 16.02:1 contrast (WCAG AA passes).

Color values

HEX	#331B18
RGB	rgb(51, 27, 24)
HSL	hsl(7, 36%, 15%)
HSV	hsv(7, 53%, 20%)
CMYK	cmyk(0%, 47.1%, 52.9%, 80%)
CIE-LAB	lab(12.95, 11.46, 7.17)
CIE-LCH	lch(12.95, 13.51, 32.03°)
OKLab	oklab(25.39% 0.0344 0.0181)
OKLCH	oklch(25.39% 0.039 27.7)
XYZ	xyz(1.9221, 1.5538, 1.0627)
Luminance	0.0155 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#331B18 #183033

analogous

#331823 #331B18 #332918

triadic

#331B18 #18331B #1B1833

tetradic

#331B18 #233318 #183033 #291833

square

#331B18 #233318 #183033 #291833

split-complementary

#331B18 #183329 #182333

monochromatic

#150B0A #150B0A #331B18 #5D312C #86473F

Accessibility & contrast

On white

16.02

#331B18 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.31

#331B18 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #331B18

16.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##331B18	#FFFFFF	#000000	##FFFFFF
##331B18	1.00	16.02	1.31	16.02
#FFFFFF	16.02	1.00	21.00	1.00
#000000	1.31	21.00	1.00	21.00
##FFFFFF	16.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#201E18

Deuteranopia (green-blind)

#262318

Tritanopia (blue-blind)

#38181A

Achromatopsia (no color)

#212121

Design tokens & code

CSS

--color: #331b18;
/* rgb */ color: rgb(51, 27, 24);
/* oklch */ color: oklch(25.4% 0.039 27.7);

Tailwind

colors: {
  custom: {
    50: '#6c5754',
    500: '#331b18',
    950: '#000000',
  },
}

SCSS

$custom: #331b18;
$custom-light: #6c5754;
$custom-dark: #000000;

JSON

{
  "hex": "#331b18",
  "rgb": {
    "r": 51,
    "g": 27,
    "b": 24
  },
  "hsl": {
    "h": 6.667,
    "s": 36,
    "l": 14.706
  },
  "oklch": {
    "l": 0.25388,
    "c": 0.03886,
    "h": 27.7
  },
  "luminance": 0.01554
}

Semantic roles & 50–950 ramp

primary

#331B18

secondary

#3E6468

accent

#C0CC5C

background

#F6F5F4

surface

#EBE9E7

border

#C6C5C3

text

#070302

muted

#7A7878

Preview Lab

Preview with #331B18

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →