#310604#310604

#310604 is a very dark, moderate red. Relative luminance 0.008; OKLCH L 20.8% C 0.070 H 28.7°. Best body text is #FFFFFF at 18.13:1 contrast (WCAG AA passes).

Color values

HEX	#310604
RGB	rgb(49, 6, 4)
HSL	hsl(3, 85%, 10%)
HSV	hsv(3, 92%, 19%)
CMYK	cmyk(0%, 87.8%, 91.8%, 80.8%)
CIE-LAB	lab(7.16, 21.39, 9.53)
CIE-LCH	lch(7.16, 23.42, 24.01°)
OKLab	oklab(20.76% 0.0615 0.0337)
OKLCH	oklch(20.76% 0.07 28.7)
XYZ	xyz(1.3538, 0.7922, 0.1965)
Luminance	0.0079 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#310604 #042F31

analogous

#310418 #310604 #311C04

triadic

#310604 #043106 #060431

tetradic

#310604 #183104 #042F31 #1C0431

square

#310604 #183104 #042F31 #1C0431

split-complementary

#310604 #04311C #041831

monochromatic

#1C0302 #1C0302 #310604 #6A0D09 #A2140D

Accessibility & contrast

On white

18.13

#310604 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.16

#310604 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #310604

18.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##310604	#FFFFFF	#000000	##FFFFFF
##310604	1.00	18.13	1.16	18.13
#FFFFFF	18.13	1.00	21.00	1.00
#000000	1.16	21.00	1.00	21.00
##FFFFFF	18.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#131004

Deuteranopia (green-blind)

#1D1903

Tritanopia (blue-blind)

#370006

Achromatopsia (no color)

#161616

Design tokens & code

CSS

--color: #310604;
/* rgb */ color: rgb(49, 6, 4);
/* oklch */ color: oklch(20.8% 0.070 28.7);

Tailwind

colors: {
  custom: {
    50: '#6d4948',
    500: '#310604',
    950: '#000000',
  },
}

SCSS

$custom: #310604;
$custom-light: #6d4948;
$custom-dark: #000000;

JSON

{
  "hex": "#310604",
  "rgb": {
    "r": 49,
    "g": 6,
    "b": 4
  },
  "hsl": {
    "h": 2.667,
    "s": 84.906,
    "l": 10.392
  },
  "oklch": {
    "l": 0.20763,
    "c": 0.07014,
    "h": 28.7
  },
  "luminance": 0.00792
}

Semantic roles & 50–950 ramp

primary

#310604

secondary

#1D7073

accent

#F2FB2D

background

#F6F4F4

surface

#ECE7E6

border

#C7C3C2

text

#070100

muted

#7A7777

Preview Lab

Preview with #310604

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

Preview Lab → · Contrast checker → · Palette generator →