#310508#310508

#310508 is a very dark, moderate red. Relative luminance 0.008; OKLCH L 20.7% C 0.071 H 21.8°. Best body text is #FFFFFF at 18.17:1 contrast (WCAG AA passes).

Color values

HEX	#310508
RGB	rgb(49, 5, 8)
HSL	hsl(356, 81%, 11%)
HSV	hsv(356, 90%, 19%)
CMYK	cmyk(0%, 89.8%, 83.7%, 80.8%)
CIE-LAB	lab(7.04, 22.22, 7.73)
CIE-LCH	lch(7.04, 23.53, 19.18°)
OKLab	oklab(20.7% 0.0658 0.0263)
OKLCH	oklch(20.7% 0.071 21.8)
XYZ	xyz(1.3649, 0.7793, 0.3082)
Luminance	0.0078 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#310508 #05312E

analogous

#31051E #310508 #311805

triadic

#310508 #083105 #050831

tetradic

#310508 #1E3105 #05312E #180531

square

#310508 #1E3105 #05312E #180531

split-complementary

#310508 #053118 #051E31

monochromatic

#1C0305 #1C0305 #310508 #690B11 #A0101A

Accessibility & contrast

On white

18.17

#310508 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.16

#310508 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #310508

18.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##310508	#FFFFFF	#000000	##FFFFFF
##310508	1.00	18.17	1.16	18.17
#FFFFFF	18.17	1.00	21.00	1.00
#000000	1.16	21.00	1.00	21.00
##FFFFFF	18.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#110F08

Deuteranopia (green-blind)

#1D1907

Tritanopia (blue-blind)

#370006

Achromatopsia (no color)

#161616

Design tokens & code

CSS

--color: #310508;
/* rgb */ color: rgb(49, 5, 8);
/* oklch */ color: oklch(20.7% 0.071 21.8);

Tailwind

colors: {
  custom: {
    50: '#6d494a',
    500: '#310508',
    950: '#000000',
  },
}

SCSS

$custom: #310508;
$custom-light: #6d494a;
$custom-dark: #000000;

JSON

{
  "hex": "#310508",
  "rgb": {
    "r": 49,
    "g": 5,
    "b": 8
  },
  "hsl": {
    "h": 355.909,
    "s": 81.481,
    "l": 10.588
  },
  "oklch": {
    "l": 0.20696,
    "c": 0.07082,
    "h": 21.8
  },
  "luminance": 0.00779
}

Semantic roles & 50–950 ramp

primary

#310508

secondary

#1F726D

accent

#F8EA30

background

#F6F4F4

surface

#ECE7E7

border

#C7C3C3

text

#070101

muted

#7A7777

Preview Lab

Preview with #310508

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

Preview Lab → · Contrast checker → · Palette generator →