#310D09#310D09

#310D09 is a very dark, muted red. Relative luminance 0.010; OKLCH L 21.9% C 0.060 H 29.2°. Best body text is #FFFFFF at 17.61:1 contrast (WCAG AA passes).

Color values

HEX	#310D09
RGB	rgb(49, 13, 9)
HSL	hsl(6, 69%, 11%)
HSV	hsv(6, 82%, 19%)
CMYK	cmyk(0%, 73.5%, 81.6%, 80.8%)
CIE-LAB	lab(8.66, 18.00, 9.68)
CIE-LCH	lch(8.66, 20.44, 28.27°)
OKLab	oklab(21.95% 0.0521 0.0291)
OKLCH	oklch(21.95% 0.06 29.2)
XYZ	xyz(1.4600, 0.9607, 0.3670)
Luminance	0.0096 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#310D09 #092D31

analogous

#310919 #310D09 #312109

triadic

#310D09 #09310D #0D0931

tetradic

#310D09 #193109 #092D31 #210931

square

#310D09 #193109 #092D31 #210931

split-complementary

#310D09 #093121 #091931

monochromatic

#1A0705 #1A0705 #310D09 #651B12 #98281C

Accessibility & contrast

On white

17.61

#310D09 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.19

#310D09 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #310D09

17.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##310D09	#FFFFFF	#000000	##FFFFFF
##310D09	1.00	17.61	1.19	17.61
#FFFFFF	17.61	1.00	21.00	1.00
#000000	1.19	21.00	1.00	21.00
##FFFFFF	17.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#171408

Deuteranopia (green-blind)

#201C08

Tritanopia (blue-blind)

#37060C

Achromatopsia (no color)

#191919

Design tokens & code

CSS

--color: #310d09;
/* rgb */ color: rgb(49, 13, 9);
/* oklch */ color: oklch(21.9% 0.060 29.2);

Tailwind

colors: {
  custom: {
    50: '#6c4d4b',
    500: '#310d09',
    950: '#000000',
  },
}

SCSS

$custom: #310d09;
$custom-light: #6c4d4b;
$custom-dark: #000000;

JSON

{
  "hex": "#310d09",
  "rgb": {
    "r": 49,
    "g": 13,
    "b": 9
  },
  "hsl": {
    "h": 6,
    "s": 68.966,
    "l": 11.373
  },
  "oklch": {
    "l": 0.21946,
    "c": 0.05971,
    "h": 29.2
  },
  "luminance": 0.00961
}

Semantic roles & 50–950 ramp

primary

#310D09

secondary

#27686F

accent

#DAEC3C

background

#F6F4F4

surface

#ECE7E7

border

#C7C3C3

text

#070101

muted

#7A7777

Preview Lab

Preview with #310D09

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

Preview Lab → · Contrast checker → · Palette generator →