#370A0E#370A0E

#370A0E is a very dark, moderate red. Relative luminance 0.011; OKLCH L 22.8% C 0.071 H 20.0°. Best body text is #FFFFFF at 17.32:1 contrast (WCAG AA passes).

Color values

HEX	#370A0E
RGB	rgb(55, 10, 14)
HSL	hsl(355, 69%, 13%)
HSV	hsv(355, 82%, 22%)
CMYK	cmyk(0%, 81.8%, 74.5%, 78.4%)
CIE-LAB	lab(9.49, 22.49, 8.82)
CIE-LCH	lch(9.49, 24.16, 21.42°)
OKLab	oklab(22.85% 0.0667 0.0242)
OKLCH	oklch(22.85% 0.071 20)
XYZ	xyz(1.7635, 1.0613, 0.5274)
Luminance	0.0106 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#370A0E #0A3733

analogous

#370A24 #370A0E #371D0A

triadic

#370A0E #0E370A #0A0E37

tetradic

#370A0E #24370A #0A3733 #1D0A37

square

#370A0E #24370A #0A3733 #1D0A37

split-complementary

#370A0E #0A371D #0A2437

monochromatic

#1A0507 #1A0507 #370A0E #6B131B #9F1D28

Accessibility & contrast

On white

17.32

#370A0E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.21

#370A0E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #370A0E

17.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##370A0E	#FFFFFF	#000000	##FFFFFF
##370A0E	1.00	17.32	1.21	17.32
#FFFFFF	17.32	1.00	21.00	1.00
#000000	1.21	21.00	1.00	21.00
##FFFFFF	17.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#16140E

Deuteranopia (green-blind)

#221E0D

Tritanopia (blue-blind)

#3D020C

Achromatopsia (no color)

#1A1A1A

Design tokens & code

CSS

--color: #370a0e;
/* rgb */ color: rgb(55, 10, 14);
/* oklch */ color: oklch(22.8% 0.071 20.0);

Tailwind

colors: {
  custom: {
    50: '#724d4d',
    500: '#370a0e',
    950: '#000000',
  },
}

SCSS

$custom: #370a0e;
$custom-light: #724d4d;
$custom-dark: #000000;

JSON

{
  "hex": "#370a0e",
  "rgb": {
    "r": 55,
    "g": 10,
    "b": 14
  },
  "hsl": {
    "h": 354.667,
    "s": 69.231,
    "l": 12.745
  },
  "oklch": {
    "l": 0.22848,
    "c": 0.07093,
    "h": 20
  },
  "luminance": 0.01061
}

Semantic roles & 50–950 ramp

primary

#370A0E

secondary

#28746E

accent

#ECDC3C

background

#F7F4F4

surface

#EDE7E7

border

#C8C3C3

text

#080101

muted

#7B7777

Preview Lab

Preview with #370A0E

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

Preview Lab → · Contrast checker → · Palette generator →