#37100E#37100E

#37100E is a very dark, moderate red. Relative luminance 0.012; OKLCH L 23.7% C 0.063 H 26.0°. Best body text is #FFFFFF at 16.89:1 contrast (WCAG AA passes).

Color values

HEX	#37100E
RGB	rgb(55, 16, 14)
HSL	hsl(3, 59%, 14%)
HSV	hsv(3, 75%, 22%)
CMYK	cmyk(0%, 70.9%, 74.5%, 78.4%)
CIE-LAB	lab(10.67, 19.32, 10.48)
CIE-LCH	lch(10.67, 21.98, 28.48°)
OKLab	oklab(23.73% 0.0567 0.0276)
OKLCH	oklch(23.73% 0.063 26)
XYZ	xyz(1.8403, 1.2148, 0.5529)
Luminance	0.0121 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37100E #0E3537

analogous

#370E20 #37100E #37240E

triadic

#37100E #0E3710 #100E37

tetradic

#37100E #20370E #0E3537 #240E37

square

#37100E #20370E #0E3537 #240E37

split-complementary

#37100E #0E3724 #0E2037

monochromatic

#180706 #180706 #37100E #681E1A #992C27

Accessibility & contrast

On white

16.89

#37100E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.24

#37100E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37100E

16.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37100E	#FFFFFF	#000000	##FFFFFF
##37100E	1.00	16.89	1.24	16.89
#FFFFFF	16.89	1.00	21.00	1.00
#000000	1.24	21.00	1.00	21.00
##FFFFFF	16.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A180E

Deuteranopia (green-blind)

#24200D

Tritanopia (blue-blind)

#3D0810

Achromatopsia (no color)

#1D1D1D

Design tokens & code

CSS

--color: #37100e;
/* rgb */ color: rgb(55, 16, 14);
/* oklch */ color: oklch(23.7% 0.063 26.0);

Tailwind

colors: {
  custom: {
    50: '#71504d',
    500: '#37100e',
    950: '#000000',
  },
}

SCSS

$custom: #37100e;
$custom-light: #71504d;
$custom-dark: #000000;

JSON

{
  "hex": "#37100e",
  "rgb": {
    "r": 55,
    "g": 16,
    "b": 14
  },
  "hsl": {
    "h": 2.927,
    "s": 59.42,
    "l": 13.529
  },
  "oklch": {
    "l": 0.23728,
    "c": 0.063,
    "h": 26
  },
  "luminance": 0.01215
}

Semantic roles & 50–950 ramp

primary

#37100E

secondary

#2F6F72

accent

#DBE345

background

#F7F4F4

surface

#EDE7E7

border

#C8C3C3

text

#080201

muted

#7B7877

Preview Lab

Preview with #37100E

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

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