#37110A#37110A

#37110A is a very dark, moderate red. Relative luminance 0.012; OKLCH L 23.8% C 0.063 H 32.4°. Best body text is #FFFFFF at 16.84:1 contrast (WCAG AA passes).

Color values

HEX	#37110A
RGB	rgb(55, 17, 10)
HSL	hsl(9, 69%, 13%)
HSV	hsv(9, 82%, 22%)
CMYK	cmyk(0%, 69.1%, 81.8%, 78.4%)
CIE-LAB	lab(10.82, 18.45, 12.51)
CIE-LCH	lch(10.82, 22.29, 34.13°)
OKLab	oklab(23.82% 0.053 0.0336)
OKLCH	oklch(23.82% 0.063 32.4)
XYZ	xyz(1.8310, 1.2353, 0.4291)
Luminance	0.0123 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37110A #0A3037

analogous

#370A1A #37110A #37270A

triadic

#37110A #0A3711 #110A37

tetradic

#37110A #1A370A #0A3037 #270A37

square

#37110A #1A370A #0A3037 #270A37

split-complementary

#37110A #0A3727 #0A1A37

monochromatic

#1A0805 #1A0805 #37110A #6B2113 #9F311D

Accessibility & contrast

On white

16.84

#37110A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.25

#37110A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37110A

16.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37110A	#FFFFFF	#000000	##FFFFFF
##37110A	1.00	16.84	1.25	16.84
#FFFFFF	16.84	1.00	21.00	1.00
#000000	1.25	21.00	1.00	21.00
##FFFFFF	16.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1B1809

Deuteranopia (green-blind)

#252009

Tritanopia (blue-blind)

#3D0910

Achromatopsia (no color)

#1D1D1D

Design tokens & code

CSS

--color: #37110a;
/* rgb */ color: rgb(55, 17, 10);
/* oklch */ color: oklch(23.8% 0.063 32.4);

Tailwind

colors: {
  custom: {
    50: '#71514b',
    500: '#37110a',
    950: '#000000',
  },
}

SCSS

$custom: #37110a;
$custom-light: #71514b;
$custom-dark: #000000;

JSON

{
  "hex": "#37110a",
  "rgb": {
    "r": 55,
    "g": 17,
    "b": 10
  },
  "hsl": {
    "h": 9.333,
    "s": 69.231,
    "l": 12.745
  },
  "oklch": {
    "l": 0.23818,
    "c": 0.06272,
    "h": 32.4
  },
  "luminance": 0.01235
}

Semantic roles & 50–950 ramp

primary

#37110A

secondary

#286974

accent

#D1EC3C

background

#F7F4F4

surface

#EDE7E7

border

#C8C3C3

text

#080201

muted

#7B7877

Preview Lab

Preview with #37110A

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

Preview Lab → · Contrast checker → · Palette generator →