#31080B#31080B

#31080B is a very dark, moderate red. Relative luminance 0.009; OKLCH L 21.2% C 0.066 H 20.7°. Best body text is #FFFFFF at 17.95:1 contrast (WCAG AA passes).

Color values

HEX	#31080B
RGB	rgb(49, 8, 11)
HSL	hsl(356, 72%, 11%)
HSV	hsv(356, 84%, 19%)
CMYK	cmyk(0%, 83.7%, 77.6%, 80.8%)
CIE-LAB	lab(7.69, 20.87, 7.44)
CIE-LCH	lch(7.69, 22.16, 19.62°)
OKLab	oklab(21.23% 0.0618 0.0234)
OKLCH	oklch(21.23% 0.066 20.7)
XYZ	xyz(1.4140, 0.8510, 0.4063)
Luminance	0.0085 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31080B #08312E

analogous

#31081F #31080B #311908

triadic

#31080B #0B3108 #080B31

tetradic

#31080B #1F3108 #08312E #190831

square

#31080B #1F3108 #08312E #190831

split-complementary

#31080B #083119 #081F31

monochromatic

#1A0406 #1A0406 #31080B #661117 #9A1923

Accessibility & contrast

On white

17.95

#31080B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.17

#31080B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31080B

17.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31080B	#FFFFFF	#000000	##FFFFFF
##31080B	1.00	17.95	1.17	17.95
#FFFFFF	17.95	1.00	21.00	1.00
#000000	1.17	21.00	1.00	21.00
##FFFFFF	17.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#13110B

Deuteranopia (green-blind)

#1D1A0A

Tritanopia (blue-blind)

#370109

Achromatopsia (no color)

#171717

Design tokens & code

CSS

--color: #31080b;
/* rgb */ color: rgb(49, 8, 11);
/* oklch */ color: oklch(21.2% 0.066 20.7);

Tailwind

colors: {
  custom: {
    50: '#6c4a4b',
    500: '#31080b',
    950: '#000000',
  },
}

SCSS

$custom: #31080b;
$custom-light: #6c4a4b;
$custom-dark: #000000;

JSON

{
  "hex": "#31080b",
  "rgb": {
    "r": 49,
    "g": 8,
    "b": 11
  },
  "hsl": {
    "h": 355.61,
    "s": 71.93,
    "l": 11.176
  },
  "oklch": {
    "l": 0.21226,
    "c": 0.06605,
    "h": 20.7
  },
  "luminance": 0.00851
}

Semantic roles & 50–950 ramp

primary

#31080B

secondary

#25706A

accent

#EFE139

background

#F6F4F4

surface

#ECE7E7

border

#C7C3C3

text

#070101

muted

#7A7777

Preview Lab

Preview with #31080B

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

Preview Lab → · Contrast checker → · Palette generator →