#370C15#370C15

#370C15 is a very dark, moderate red. Relative luminance 0.011; OKLCH L 23.3% C 0.068 H 11.8°. Best body text is #FFFFFF at 17.13:1 contrast (WCAG AA passes).

Color values

HEX	#370C15
RGB	rgb(55, 12, 21)
HSL	hsl(347, 64%, 13%)
HSV	hsv(347, 78%, 22%)
CMYK	cmyk(0%, 78.2%, 61.8%, 78.4%)
CIE-LAB	lab(10.03, 22.13, 5.41)
CIE-LCH	lch(10.03, 22.78, 13.75°)
OKLab	oklab(23.3% 0.067 0.014)
OKLCH	oklch(23.3% 0.068 11.8)
XYZ	xyz(1.8425, 1.1296, 0.8303)
Luminance	0.0113 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#370C15 #0C372E

analogous

#370C2A #370C15 #37180C

triadic

#370C15 #15370C #0C1537

tetradic

#370C15 #2A370C #0C372E #180C37

square

#370C15 #2A370C #0C372E #180C37

split-complementary

#370C15 #0C3718 #0C2A37

monochromatic

#19050A #19050A #370C15 #691728 #9B223B

Accessibility & contrast

On white

17.13

#370C15 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.23

#370C15 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #370C15

17.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##370C15	#FFFFFF	#000000	##FFFFFF
##370C15	1.00	17.13	1.23	17.13
#FFFFFF	17.13	1.00	21.00	1.00
#000000	1.23	21.00	1.00	21.00
##FFFFFF	17.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#161615

Deuteranopia (green-blind)

#211F14

Tritanopia (blue-blind)

#3D0510

Achromatopsia (no color)

#1C1C1C

Design tokens & code

CSS

--color: #370c15;
/* rgb */ color: rgb(55, 12, 21);
/* oklch */ color: oklch(23.3% 0.068 11.8);

Tailwind

colors: {
  custom: {
    50: '#714e52',
    500: '#370c15',
    950: '#000000',
  },
}

SCSS

$custom: #370c15;
$custom-light: #714e52;
$custom-dark: #000000;

JSON

{
  "hex": "#370c15",
  "rgb": {
    "r": 55,
    "g": 12,
    "b": 21
  },
  "hsl": {
    "h": 347.442,
    "s": 64.179,
    "l": 13.137
  },
  "oklch": {
    "l": 0.23304,
    "c": 0.06839,
    "h": 11.8
  },
  "luminance": 0.01129
}

Semantic roles & 50–950 ramp

primary

#370C15

secondary

#2C7364

accent

#E7C441

background

#F7F4F4

surface

#EDE7E7

border

#C8C3C3

text

#080202

muted

#7B7878

Preview Lab

Preview with #370C15

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

Preview Lab → · Contrast checker → · Palette generator →