#37151D#37151D

#37151D is a dark, muted red. Relative luminance 0.014; OKLCH L 25.0% C 0.055 H 7.1°. Best body text is #FFFFFF at 16.31:1 contrast (WCAG AA passes).

Color values

HEX	#37151D
RGB	rgb(55, 21, 29)
HSL	hsl(346, 45%, 15%)
HSV	hsv(346, 62%, 22%)
CMYK	cmyk(0%, 61.8%, 47.3%, 78.4%)
CIE-LAB	lab(12.21, 17.96, 2.56)
CIE-LCH	lch(12.21, 18.14, 8.11°)
OKLab	oklab(25.02% 0.0546 0.0068)
OKLCH	oklch(25.02% 0.055 7.1)
XYZ	xyz(2.0656, 1.4375, 1.3308)
Luminance	0.0144 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37151D #15372F

analogous

#37152E #37151D #371E15

triadic

#37151D #1D3715 #151D37

tetradic

#37151D #2E3715 #15372F #1E1537

square

#37151D #2E3715 #15372F #1E1537

split-complementary

#37151D #15371E #152E37

monochromatic

#16080C #16080C #37151D #632634 #90374C

Accessibility & contrast

On white

16.31

#37151D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.29

#37151D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37151D

16.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37151D	#FFFFFF	#000000	##FFFFFF
##37151D	1.00	16.31	1.29	16.31
#FFFFFF	16.31	1.00	21.00	1.00
#000000	1.29	21.00	1.00	21.00
##FFFFFF	16.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1B1C1D

Deuteranopia (green-blind)

#24221C

Tritanopia (blue-blind)

#3C1118

Achromatopsia (no color)

#202020

Design tokens & code

CSS

--color: #37151d;
/* rgb */ color: rgb(55, 21, 29);
/* oklch */ color: oklch(25.0% 0.055 7.1);

Tailwind

colors: {
  custom: {
    50: '#705358',
    500: '#37151d',
    950: '#000000',
  },
}

SCSS

$custom: #37151d;
$custom-light: #705358;
$custom-dark: #000000;

JSON

{
  "hex": "#37151d",
  "rgb": {
    "r": 55,
    "g": 21,
    "b": 29
  },
  "hsl": {
    "h": 345.882,
    "s": 44.737,
    "l": 14.902
  },
  "oklch": {
    "l": 0.25016,
    "c": 0.05499,
    "h": 7.1
  },
  "luminance": 0.01437
}

Semantic roles & 50–950 ramp

primary

#37151D

secondary

#3A6E62

accent

#D4B653

background

#F6F4F5

surface

#ECE7E9

border

#C7C3C5

text

#080203

muted

#7B7878

Preview Lab

Preview with #37151D

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

Preview Lab → · Contrast checker → · Palette generator →