#370A11#370A11

#370A11 is a very dark, moderate red. Relative luminance 0.011; OKLCH L 22.9% C 0.071 H 16.0°. Best body text is #FFFFFF at 17.30:1 contrast (WCAG AA passes).

Color values

HEX	#370A11
RGB	rgb(55, 10, 17)
HSL	hsl(351, 69%, 13%)
HSV	hsv(351, 82%, 22%)
CMYK	cmyk(0%, 81.8%, 69.1%, 78.4%)
CIE-LAB	lab(9.56, 22.73, 7.29)
CIE-LCH	lch(9.56, 23.88, 17.78°)
OKLab	oklab(22.92% 0.0681 0.0195)
OKLCH	oklch(22.92% 0.071 16)
XYZ	xyz(1.7854, 1.0700, 0.6427)
Luminance	0.0107 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#370A11 #0A3730

analogous

#370A27 #370A11 #371A0A

triadic

#370A11 #11370A #0A1137

tetradic

#370A11 #27370A #0A3730 #1A0A37

square

#370A11 #27370A #0A3730 #1A0A37

split-complementary

#370A11 #0A371A #0A2737

monochromatic

#1A0508 #1A0508 #370A11 #6B1321 #9F1D31

Accessibility & contrast

On white

17.30

#370A11 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.21

#370A11 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #370A11

17.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##370A11	#FFFFFF	#000000	##FFFFFF
##370A11	1.00	17.30	1.21	17.30
#FFFFFF	17.30	1.00	21.00	1.00
#000000	1.21	21.00	1.00	21.00
##FFFFFF	17.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#161511

Deuteranopia (green-blind)

#211E10

Tritanopia (blue-blind)

#3D020D

Achromatopsia (no color)

#1B1B1B

Design tokens & code

CSS

--color: #370a11;
/* rgb */ color: rgb(55, 10, 17);
/* oklch */ color: oklch(22.9% 0.071 16.0);

Tailwind

colors: {
  custom: {
    50: '#724d4f',
    500: '#370a11',
    950: '#000000',
  },
}

SCSS

$custom: #370a11;
$custom-light: #724d4f;
$custom-dark: #000000;

JSON

{
  "hex": "#370a11",
  "rgb": {
    "r": 55,
    "g": 10,
    "b": 17
  },
  "hsl": {
    "h": 350.667,
    "s": 69.231,
    "l": 12.745
  },
  "oklch": {
    "l": 0.22923,
    "c": 0.07086,
    "h": 16
  },
  "luminance": 0.0107
}

Semantic roles & 50–950 ramp

primary

#370A11

secondary

#287469

accent

#ECD13C

background

#F7F4F4

surface

#EDE7E7

border

#C8C3C3

text

#080101

muted

#7B7777

Preview Lab

Preview with #370A11

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

Preview Lab → · Contrast checker → · Palette generator →