#310F0D#310F0D

#310F0D is a very dark, muted red. Relative luminance 0.010; OKLCH L 22.4% C 0.056 H 26.0°. Best body text is #FFFFFF at 17.43:1 contrast (WCAG AA passes).

Color values

HEX	#310F0D
RGB	rgb(49, 15, 13)
HSL	hsl(3, 58%, 12%)
HSV	hsv(3, 73%, 19%)
CMYK	cmyk(0%, 69.4%, 73.5%, 80.8%)
CIE-LAB	lab(9.19, 17.13, 8.71)
CIE-LCH	lch(9.19, 19.21, 26.95°)
OKLab	oklab(22.37% 0.0504 0.0245)
OKLCH	oklch(22.37% 0.056 26)
XYZ	xyz(1.5102, 1.0239, 0.4988)
Luminance	0.0102 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#310F0D #0D2F31

analogous

#310D1D #310F0D #31210D

triadic

#310F0D #0D310F #0F0D31

tetradic

#310F0D #1D310D #0D2F31 #210D31

square

#310F0D #1D310D #0D2F31 #210D31

split-complementary

#310F0D #0D3121 #0D1D31

monochromatic

#180706 #180706 #310F0D #611E1A #922D27

Accessibility & contrast

On white

17.43

#310F0D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.20

#310F0D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #310F0D

17.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##310F0D	#FFFFFF	#000000	##FFFFFF
##310F0D	1.00	17.43	1.20	17.43
#FFFFFF	17.43	1.00	21.00	1.00
#000000	1.20	21.00	1.00	21.00
##FFFFFF	17.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#18150D

Deuteranopia (green-blind)

#201D0C

Tritanopia (blue-blind)

#36090F

Achromatopsia (no color)

#1A1A1A

Design tokens & code

CSS

--color: #310f0d;
/* rgb */ color: rgb(49, 15, 13);
/* oklch */ color: oklch(22.4% 0.056 26.0);

Tailwind

colors: {
  custom: {
    50: '#6c4f4c',
    500: '#310f0d',
    950: '#000000',
  },
}

SCSS

$custom: #310f0d;
$custom-light: #6c4f4c;
$custom-dark: #000000;

JSON

{
  "hex": "#310f0d",
  "rgb": {
    "r": 49,
    "g": 15,
    "b": 13
  },
  "hsl": {
    "h": 3.333,
    "s": 58.065,
    "l": 12.157
  },
  "oklch": {
    "l": 0.2237,
    "c": 0.05603,
    "h": 26
  },
  "luminance": 0.01024
}

Semantic roles & 50–950 ramp

primary

#310F0D

secondary

#2E696C

accent

#D9E147

background

#F6F4F4

surface

#ECE7E7

border

#C7C3C3

text

#070201

muted

#7A7877

Preview Lab

Preview with #310F0D

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

Preview Lab → · Contrast checker → · Palette generator →