#331D1B#331D1B

#331D1B is a dark, muted red. Relative luminance 0.017; OKLCH L 25.9% C 0.035 H 25.4°. Best body text is #FFFFFF at 15.76:1 contrast (WCAG AA passes).

Color values

HEX	#331D1B
RGB	rgb(51, 29, 27)
HSL	hsl(5, 31%, 15%)
HSV	hsv(5, 47%, 20%)
CMYK	cmyk(0%, 43.1%, 47.1%, 80%)
CIE-LAB	lab(13.60, 10.50, 5.90)
CIE-LCH	lch(13.60, 12.04, 29.31°)
OKLab	oklab(25.92% 0.0317 0.0151)
OKLCH	oklch(25.92% 0.035 25.4)
XYZ	xyz(2.0025, 1.6618, 1.2520)
Luminance	0.0166 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#331D1B #1B3133

analogous

#331B25 #331D1B #33291B

triadic

#331D1B #1B331D #1D1B33

tetradic

#331D1B #25331B #1B3133 #291B33

square

#331D1B #25331B #1B3133 #291B33

split-complementary

#331D1B #1B3329 #1B2533

monochromatic

#140B0B #140B0B #331D1B #5B3430 #834B45

Accessibility & contrast

On white

15.76

#331D1B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.33

#331D1B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #331D1B

15.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##331D1B	#FFFFFF	#000000	##FFFFFF
##331D1B	1.00	15.76	1.33	15.76
#FFFFFF	15.76	1.00	21.00	1.00
#000000	1.33	21.00	1.00	21.00
##FFFFFF	15.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#22201B

Deuteranopia (green-blind)

#27241B

Tritanopia (blue-blind)

#371A1D

Achromatopsia (no color)

#232323

Design tokens & code

CSS

--color: #331d1b;
/* rgb */ color: rgb(51, 29, 27);
/* oklch */ color: oklch(25.9% 0.035 25.4);

Tailwind

colors: {
  custom: {
    50: '#6c5957',
    500: '#331d1b',
    950: '#000000',
  },
}

SCSS

$custom: #331d1b;
$custom-light: #6c5957;
$custom-dark: #000000;

JSON

{
  "hex": "#331d1b",
  "rgb": {
    "r": 51,
    "g": 29,
    "b": 27
  },
  "hsl": {
    "h": 5,
    "s": 30.769,
    "l": 15.294
  },
  "oklch": {
    "l": 0.25918,
    "c": 0.03514,
    "h": 25.4
  },
  "luminance": 0.01662
}

Semantic roles & 50–950 ramp

primary

#331D1B

secondary

#436467

accent

#BEC761

background

#F6F5F5

surface

#EBE9E9

border

#C6C5C5

text

#070303

muted

#7A7878

Preview Lab

Preview with #331D1B

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

Preview Lab → · Contrast checker → · Palette generator →