#331F1B#331F1B

#331F1B is a dark, muted red. Relative luminance 0.018; OKLCH L 26.4% C 0.032 H 31.8°. Best body text is #FFFFFF at 15.53:1 contrast (WCAG AA passes).

Color values

HEX	#331F1B
RGB	rgb(51, 31, 27)
HSL	hsl(10, 31%, 15%)
HSV	hsv(10, 47%, 20%)
CMYK	cmyk(0%, 39.2%, 47.1%, 80%)
CIE-LAB	lab(14.19, 9.11, 6.71)
CIE-LCH	lch(14.19, 11.32, 36.36°)
OKLab	oklab(26.37% 0.0276 0.0171)
OKLCH	oklch(26.37% 0.032 31.8)
XYZ	xyz(2.0531, 1.7631, 1.2689)
Luminance	0.0176 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#331F1B #1B2F33

analogous

#331B23 #331F1B #332B1B

triadic

#331F1B #1B331F #1F1B33

tetradic

#331F1B #23331B #1B2F33 #2B1B33

square

#331F1B #23331B #1B2F33 #2B1B33

split-complementary

#331F1B #1B332B #1B2333

monochromatic

#140C0B #140C0B #331F1B #5B3730 #835045

Accessibility & contrast

On white

15.53

#331F1B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.35

#331F1B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #331F1B

15.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##331F1B	#FFFFFF	#000000	##FFFFFF
##331F1B	1.00	15.53	1.35	15.53
#FFFFFF	15.53	1.00	21.00	1.00
#000000	1.35	21.00	1.00	21.00
##FFFFFF	15.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#23221B

Deuteranopia (green-blind)

#28261B

Tritanopia (blue-blind)

#371C1E

Achromatopsia (no color)

#242424

Design tokens & code

CSS

--color: #331f1b;
/* rgb */ color: rgb(51, 31, 27);
/* oklch */ color: oklch(26.4% 0.032 31.8);

Tailwind

colors: {
  custom: {
    50: '#6c5a57',
    500: '#331f1b',
    950: '#000000',
  },
}

SCSS

$custom: #331f1b;
$custom-light: #6c5a57;
$custom-dark: #000000;

JSON

{
  "hex": "#331f1b",
  "rgb": {
    "r": 51,
    "g": 31,
    "b": 27
  },
  "hsl": {
    "h": 10,
    "s": 30.769,
    "l": 15.294
  },
  "oklch": {
    "l": 0.26372,
    "c": 0.03241,
    "h": 31.8
  },
  "luminance": 0.01763
}

Semantic roles & 50–950 ramp

primary

#331F1B

secondary

#436167

accent

#B6C761

background

#F6F5F5

surface

#EBE9E9

border

#C6C5C5

text

#070403

muted

#7A7978

Preview Lab

Preview with #331F1B

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

Preview Lab → · Contrast checker → · Palette generator →