#31090E#31090E

#31090E is a very dark, moderate red. Relative luminance 0.009; OKLCH L 21.4% C 0.064 H 17.3°. Best body text is #FFFFFF at 17.86:1 contrast (WCAG AA passes).

Color values

HEX	#31090E
RGB	rgb(49, 9, 14)
HSL	hsl(353, 69%, 11%)
HSV	hsv(353, 82%, 19%)
CMYK	cmyk(0%, 81.6%, 71.4%, 80.8%)
CIE-LAB	lab(7.95, 20.59, 6.42)
CIE-LCH	lch(7.95, 21.57, 17.33°)
OKLab	oklab(21.45% 0.0615 0.0192)
OKLCH	oklch(21.45% 0.064 17.3)
XYZ	xyz(1.4437, 0.8802, 0.5093)
Luminance	0.0088 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31090E #09312C

analogous

#310922 #31090E #311809

triadic

#31090E #0E3109 #090E31

tetradic

#31090E #223109 #09312C #180931

square

#31090E #223109 #09312C #180931

split-complementary

#31090E #093118 #092231

monochromatic

#1A0507 #1A0507 #31090E #65121D #981C2C

Accessibility & contrast

On white

17.86

#31090E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.18

#31090E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31090E

17.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31090E	#FFFFFF	#000000	##FFFFFF
##31090E	1.00	17.86	1.18	17.86
#FFFFFF	17.86	1.00	21.00	1.00
#000000	1.18	21.00	1.00	21.00
##FFFFFF	17.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#13120E

Deuteranopia (green-blind)

#1D1B0D

Tritanopia (blue-blind)

#37030B

Achromatopsia (no color)

#171717

Design tokens & code

CSS

--color: #31090e;
/* rgb */ color: rgb(49, 9, 14);
/* oklch */ color: oklch(21.4% 0.064 17.3);

Tailwind

colors: {
  custom: {
    50: '#6c4b4d',
    500: '#31090e',
    950: '#000000',
  },
}

SCSS

$custom: #31090e;
$custom-light: #6c4b4d;
$custom-dark: #000000;

JSON

{
  "hex": "#31090e",
  "rgb": {
    "r": 49,
    "g": 9,
    "b": 14
  },
  "hsl": {
    "h": 352.5,
    "s": 68.966,
    "l": 11.373
  },
  "oklch": {
    "l": 0.21449,
    "c": 0.06446,
    "h": 17.3
  },
  "luminance": 0.0088
}

Semantic roles & 50–950 ramp

primary

#31090E

secondary

#276F66

accent

#ECD63C

background

#F6F4F4

surface

#ECE7E7

border

#C7C3C3

text

#070101

muted

#7A7777

Preview Lab

Preview with #31090E

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

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