#37211B#37211B

#37211B is a dark, muted red. Relative luminance 0.020; OKLCH L 27.4% C 0.036 H 35.9°. Best body text is #FFFFFF at 15.05:1 contrast (WCAG AA passes).

Color values

HEX	#37211B
RGB	rgb(55, 33, 27)
HSL	hsl(13, 34%, 16%)
HSV	hsv(13, 51%, 22%)
CMYK	cmyk(0%, 40%, 50.9%, 78.4%)
CIE-LAB	lab(15.38, 9.73, 8.43)
CIE-LCH	lch(15.38, 12.88, 40.88°)
OKLab	oklab(27.42% 0.0292 0.0212)
OKLCH	oklch(27.42% 0.036 35.9)
XYZ	xyz(2.3173, 1.9792, 1.2967)
Luminance	0.0198 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37211B #1B3137

analogous

#371B23 #37211B #372F1B

triadic

#37211B #1B3721 #211B37

tetradic

#37211B #23371B #1B3137 #2F1B37

square

#37211B #23371B #1B3137 #2F1B37

split-complementary

#37211B #1B372F #1B2337

monochromatic

#150C0A #150C0A #37211B #603A2F #895243

Accessibility & contrast

On white

15.05

#37211B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.40

#37211B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37211B

15.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37211B	#FFFFFF	#000000	##FFFFFF
##37211B	1.00	15.05	1.40	15.05
#FFFFFF	15.05	1.00	21.00	1.00
#000000	1.40	21.00	1.00	21.00
##FFFFFF	15.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#26241B

Deuteranopia (green-blind)

#2B281B

Tritanopia (blue-blind)

#3C1E1F

Achromatopsia (no color)

#262626

Design tokens & code

CSS

--color: #37211b;
/* rgb */ color: rgb(55, 33, 27);
/* oklch */ color: oklch(27.4% 0.036 35.9);

Tailwind

colors: {
  custom: {
    50: '#6f5c57',
    500: '#37211b',
    950: '#000000',
  },
}

SCSS

$custom: #37211b;
$custom-light: #6f5c57;
$custom-dark: #000000;

JSON

{
  "hex": "#37211b",
  "rgb": {
    "r": 55,
    "g": 33,
    "b": 27
  },
  "hsl": {
    "h": 12.857,
    "s": 34.146,
    "l": 16.078
  },
  "oklch": {
    "l": 0.27417,
    "c": 0.03608,
    "h": 35.9
  },
  "luminance": 0.01979
}

Semantic roles & 50–950 ramp

primary

#37211B

secondary

#42636C

accent

#B3CA5E

background

#F6F5F5

surface

#ECE9E9

border

#C7C5C5

text

#070403

muted

#7A7978

Preview Lab

Preview with #37211B

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

Preview Lab → · Contrast checker → · Palette generator →