#37150B#37150B

#37150B is a very dark, muted red. Relative luminance 0.014; OKLCH L 24.6% C 0.058 H 37.1°. Best body text is #FFFFFF at 16.48:1 contrast (WCAG AA passes).

Color values

HEX	#37150B
RGB	rgb(55, 21, 11)
HSL	hsl(14, 67%, 13%)
HSV	hsv(14, 80%, 22%)
CMYK	cmyk(0%, 61.8%, 80%, 78.4%)
CIE-LAB	lab(11.78, 16.07, 13.42)
CIE-LCH	lch(11.78, 20.94, 39.86°)
OKLab	oklab(24.55% 0.0459 0.0347)
OKLCH	oklch(24.55% 0.058 37.1)
XYZ	xyz(1.9043, 1.3730, 0.4813)
Luminance	0.0137 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37150B #0B2D37

analogous

#370B17 #37150B #372B0B

triadic

#37150B #0B3715 #150B37

tetradic

#37150B #17370B #0B2D37 #2B0B37

square

#37150B #17370B #0B2D37 #2B0B37

split-complementary

#37150B #0B372B #0B1737

monochromatic

#1A0A05 #1A0A05 #37150B #6A2815 #9D3C1F

Accessibility & contrast

On white

16.48

#37150B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.27

#37150B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37150B

16.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37150B	#FFFFFF	#000000	##FFFFFF
##37150B	1.00	16.48	1.27	16.48
#FFFFFF	16.48	1.00	21.00	1.00
#000000	1.27	21.00	1.00	21.00
##FFFFFF	16.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1E1A0A

Deuteranopia (green-blind)

#26220A

Tritanopia (blue-blind)

#3D0E13

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #37150b;
/* rgb */ color: rgb(55, 21, 11);
/* oklch */ color: oklch(24.6% 0.058 37.1);

Tailwind

colors: {
  custom: {
    50: '#71534b',
    500: '#37150b',
    950: '#000000',
  },
}

SCSS

$custom: #37150b;
$custom-light: #71534b;
$custom-dark: #000000;

JSON

{
  "hex": "#37150b",
  "rgb": {
    "r": 55,
    "g": 21,
    "b": 11
  },
  "hsl": {
    "h": 13.636,
    "s": 66.667,
    "l": 12.941
  },
  "oklch": {
    "l": 0.24552,
    "c": 0.05752,
    "h": 37.1
  },
  "luminance": 0.01373
}

Semantic roles & 50–950 ramp

primary

#37150B

secondary

#2A6374

accent

#C3EA3E

background

#F7F4F4

surface

#EDE7E7

border

#C8C3C3

text

#080201

muted

#7B7877

Preview Lab

Preview with #37150B

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

Preview Lab → · Contrast checker → · Palette generator →