#310D13#310D13

#310D13 is a very dark, muted red. Relative luminance 0.010; OKLCH L 22.2% C 0.059 H 13.2°. Best body text is #FFFFFF at 17.54:1 contrast (WCAG AA passes).

Color values

HEX	#310D13
RGB	rgb(49, 13, 19)
HSL	hsl(350, 58%, 12%)
HSV	hsv(350, 73%, 19%)
CMYK	cmyk(0%, 73.5%, 61.2%, 80.8%)
CIE-LAB	lab(8.89, 18.91, 4.94)
CIE-LCH	lch(8.89, 19.54, 14.65°)
OKLab	oklab(22.2% 0.0571 0.0134)
OKLCH	oklch(22.2% 0.059 13.2)
XYZ	xyz(1.5282, 0.9880, 0.7262)
Luminance	0.0099 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#310D13 #0D312B

analogous

#310D25 #310D13 #31190D

triadic

#310D13 #13310D #0D1331

tetradic

#310D13 #25310D #0D312B #190D31

square

#310D13 #25310D #0D312B #190D31

split-complementary

#310D13 #0D3119 #0D2531

monochromatic

#180609 #180609 #310D13 #611A26 #922739

Accessibility & contrast

On white

17.54

#310D13 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.20

#310D13 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #310D13

17.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##310D13	#FFFFFF	#000000	##FFFFFF
##310D13	1.00	17.54	1.20	17.54
#FFFFFF	17.54	1.00	21.00	1.00
#000000	1.20	21.00	1.00	21.00
##FFFFFF	17.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#151513

Deuteranopia (green-blind)

#1E1C12

Tritanopia (blue-blind)

#36080F

Achromatopsia (no color)

#191919

Design tokens & code

CSS

--color: #310d13;
/* rgb */ color: rgb(49, 13, 19);
/* oklch */ color: oklch(22.2% 0.059 13.2);

Tailwind

colors: {
  custom: {
    50: '#6c4d50',
    500: '#310d13',
    950: '#000000',
  },
}

SCSS

$custom: #310d13;
$custom-light: #6c4d50;
$custom-dark: #000000;

JSON

{
  "hex": "#310d13",
  "rgb": {
    "r": 49,
    "g": 13,
    "b": 19
  },
  "hsl": {
    "h": 350,
    "s": 58.065,
    "l": 12.157
  },
  "oklch": {
    "l": 0.22195,
    "c": 0.05865,
    "h": 13.2
  },
  "luminance": 0.00988
}

Semantic roles & 50–950 ramp

primary

#310D13

secondary

#2E6C62

accent

#E1C747

background

#F6F4F4

surface

#ECE7E7

border

#C7C3C3

text

#070102

muted

#7A7778

Preview Lab

Preview with #310D13

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

Preview Lab → · Contrast checker → · Palette generator →