#310C0D#310C0D

#310C0D is a very dark, moderate red. Relative luminance 0.009; OKLCH L 21.9% C 0.060 H 22.0°. Best body text is #FFFFFF at 17.66:1 contrast (WCAG AA passes).

Color values

HEX	#310C0D
RGB	rgb(49, 12, 13)
HSL	hsl(358, 61%, 12%)
HSV	hsv(358, 76%, 19%)
CMYK	cmyk(0%, 75.5%, 73.5%, 80.8%)
CIE-LAB	lab(8.53, 18.88, 7.75)
CIE-LCH	lch(8.53, 20.41, 22.32°)
OKLab	oklab(21.87% 0.0559 0.0226)
OKLCH	oklch(21.87% 0.06 22)
XYZ	xyz(1.4709, 0.9452, 0.4857)
Luminance	0.0095 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#310C0D #0C3130

analogous

#310C20 #310C0D #311E0C

triadic

#310C0D #0D310C #0C0D31

tetradic

#310C0D #20310C #0C3130 #1E0C31

square

#310C0D #20310C #0C3130 #1E0C31

split-complementary

#310C0D #0C311E #0C2031

monochromatic

#190607 #190607 #310C0D #62181A #932427

Accessibility & contrast

On white

17.66

#310C0D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.19

#310C0D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #310C0D

17.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##310C0D	#FFFFFF	#000000	##FFFFFF
##310C0D	1.00	17.66	1.19	17.66
#FFFFFF	17.66	1.00	21.00	1.00
#000000	1.19	21.00	1.00	21.00
##FFFFFF	17.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#15140D

Deuteranopia (green-blind)

#1F1B0C

Tritanopia (blue-blind)

#37050D

Achromatopsia (no color)

#191919

Design tokens & code

CSS

--color: #310c0d;
/* rgb */ color: rgb(49, 12, 13);
/* oklch */ color: oklch(21.9% 0.060 22.0);

Tailwind

colors: {
  custom: {
    50: '#6c4d4c',
    500: '#310c0d',
    950: '#000000',
  },
}

SCSS

$custom: #310c0d;
$custom-light: #6c4d4c;
$custom-dark: #000000;

JSON

{
  "hex": "#310c0d",
  "rgb": {
    "r": 49,
    "g": 12,
    "b": 13
  },
  "hsl": {
    "h": 358.378,
    "s": 60.656,
    "l": 11.961
  },
  "oklch": {
    "l": 0.21871,
    "c": 0.06028,
    "h": 22
  },
  "luminance": 0.00945
}

Semantic roles & 50–950 ramp

primary

#310C0D

secondary

#2C6D6B

accent

#E4DF44

background

#F6F4F4

surface

#ECE7E7

border

#C7C3C3

text

#070101

muted

#7A7777

Preview Lab

Preview with #310C0D

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

Preview Lab → · Contrast checker → · Palette generator →