#331B17#331B17

#331B17 is a dark, muted red. Relative luminance 0.015; OKLCH L 25.4% C 0.039 H 30.2°. Best body text is #FFFFFF at 16.03:1 contrast (WCAG AA passes).

Color values

HEX	#331B17
RGB	rgb(51, 27, 23)
HSL	hsl(9, 38%, 15%)
HSV	hsv(9, 55%, 20%)
CMYK	cmyk(0%, 47.1%, 54.9%, 80%)
CIE-LAB	lab(12.92, 11.32, 7.86)
CIE-LCH	lch(12.92, 13.78, 34.75°)
OKLab	oklab(25.36% 0.0339 0.0197)
OKLCH	oklch(25.36% 0.039 30.2)
XYZ	xyz(1.9119, 1.5497, 1.0089)
Luminance	0.0155 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#331B17 #172F33

analogous

#331721 #331B17 #332917

triadic

#331B17 #17331B #1B1733

tetradic

#331B17 #213317 #172F33 #291733

square

#331B17 #213317 #172F33 #291733

split-complementary

#331B17 #173329 #172133

monochromatic

#150B0A #150B0A #331B17 #5D312A #87483D

Accessibility & contrast

On white

16.03

#331B17 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.31

#331B17 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #331B17

16.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##331B17	#FFFFFF	#000000	##FFFFFF
##331B17	1.00	16.03	1.31	16.03
#FFFFFF	16.03	1.00	21.00	1.00
#000000	1.31	21.00	1.00	21.00
##FFFFFF	16.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#201E17

Deuteranopia (green-blind)

#262317

Tritanopia (blue-blind)

#38181A

Achromatopsia (no color)

#212121

Design tokens & code

CSS

--color: #331b17;
/* rgb */ color: rgb(51, 27, 23);
/* oklch */ color: oklch(25.4% 0.039 30.2);

Tailwind

colors: {
  custom: {
    50: '#6c5753',
    500: '#331b17',
    950: '#000000',
  },
}

SCSS

$custom: #331b17;
$custom-light: #6c5753;
$custom-dark: #000000;

JSON

{
  "hex": "#331b17",
  "rgb": {
    "r": 51,
    "g": 27,
    "b": 23
  },
  "hsl": {
    "h": 8.571,
    "s": 37.838,
    "l": 14.51
  },
  "oklch": {
    "l": 0.25361,
    "c": 0.0392,
    "h": 30.2
  },
  "luminance": 0.0155
}

Semantic roles & 50–950 ramp

primary

#331B17

secondary

#3D6369

accent

#BDCE5A

background

#F6F5F4

surface

#EBE9E7

border

#C6C5C3

text

#070302

muted

#7A7878

Preview Lab

Preview with #331B17

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

Preview Lab → · Contrast checker → · Palette generator →