#31070D#31070D

#31070D is a very dark, moderate red. Relative luminance 0.008; OKLCH L 21.1% C 0.067 H 16.9°. Best body text is #FFFFFF at 18.00:1 contrast (WCAG AA passes).

Color values

HEX	#31070D
RGB	rgb(49, 7, 13)
HSL	hsl(351, 75%, 11%)
HSV	hsv(351, 86%, 19%)
CMYK	cmyk(0%, 85.7%, 73.5%, 80.8%)
CIE-LAB	lab(7.54, 21.57, 6.31)
CIE-LCH	lch(7.54, 22.47, 16.31°)
OKLab	oklab(21.12% 0.0646 0.0196)
OKLCH	oklch(21.12% 0.067 16.9)
XYZ	xyz(1.4154, 0.8342, 0.4672)
Luminance	0.0083 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31070D #07312B

analogous

#310722 #31070D #311607

triadic

#31070D #0D3107 #070D31

tetradic

#31070D #223107 #07312B #160731

square

#31070D #223107 #07312B #160731

split-complementary

#31070D #073116 #072231

monochromatic

#1B0407 #1B0407 #31070D #670F1B #9C1629

Accessibility & contrast

On white

18.00

#31070D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.17

#31070D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31070D

18.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31070D	#FFFFFF	#000000	##FFFFFF
##31070D	1.00	18.00	1.17	18.00
#FFFFFF	18.00	1.00	21.00	1.00
#000000	1.17	21.00	1.00	21.00
##FFFFFF	18.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#12110D

Deuteranopia (green-blind)

#1D1A0C

Tritanopia (blue-blind)

#370109

Achromatopsia (no color)

#171717

Design tokens & code

CSS

--color: #31070d;
/* rgb */ color: rgb(49, 7, 13);
/* oklch */ color: oklch(21.1% 0.067 16.9);

Tailwind

colors: {
  custom: {
    50: '#6c4a4c',
    500: '#31070d',
    950: '#000000',
  },
}

SCSS

$custom: #31070d;
$custom-light: #6c4a4c;
$custom-dark: #000000;

JSON

{
  "hex": "#31070d",
  "rgb": {
    "r": 49,
    "g": 7,
    "b": 13
  },
  "hsl": {
    "h": 351.429,
    "s": 75,
    "l": 10.98
  },
  "oklch": {
    "l": 0.21124,
    "c": 0.06747,
    "h": 16.9
  },
  "luminance": 0.00834
}

Semantic roles & 50–950 ramp

primary

#31070D

secondary

#237166

accent

#F2D736

background

#F6F4F4

surface

#ECE7E7

border

#C7C3C3

text

#070101

muted

#7A7777

Preview Lab

Preview with #31070D

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

Preview Lab → · Contrast checker → · Palette generator →