#310B14#310B14

#310B14 is a very dark, moderate red. Relative luminance 0.009; OKLCH L 21.9% C 0.062 H 9.5°. Best body text is #FFFFFF at 17.67:1 contrast (WCAG AA passes).

Color values

HEX	#310B14
RGB	rgb(49, 11, 20)
HSL	hsl(346, 63%, 12%)
HSV	hsv(346, 78%, 19%)
CMYK	cmyk(0%, 77.6%, 59.2%, 80.8%)
CIE-LAB	lab(8.51, 20.13, 3.74)
CIE-LCH	lch(8.51, 20.48, 10.52°)
OKLab	oklab(21.92% 0.0611 0.0102)
OKLCH	oklch(21.92% 0.062 9.5)
XYZ	xyz(1.5127, 0.9430, 0.7640)
Luminance	0.0094 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#310B14 #0B3128

analogous

#310B27 #310B14 #31150B

triadic

#310B14 #14310B #0B1431

tetradic

#310B14 #27310B #0B3128 #150B31

square

#310B14 #27310B #0B3128 #150B31

split-complementary

#310B14 #0B3115 #0B2731

monochromatic

#19060A #19060A #310B14 #631628 #95213D

Accessibility & contrast

On white

17.67

#310B14 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.19

#310B14 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #310B14

17.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##310B14	#FFFFFF	#000000	##FFFFFF
##310B14	1.00	17.67	1.19	17.67
#FFFFFF	17.67	1.00	21.00	1.00
#000000	1.19	21.00	1.00	21.00
##FFFFFF	17.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#141414

Deuteranopia (green-blind)

#1D1B13

Tritanopia (blue-blind)

#36060F

Achromatopsia (no color)

#191919

Design tokens & code

CSS

--color: #310b14;
/* rgb */ color: rgb(49, 11, 20);
/* oklch */ color: oklch(21.9% 0.062 9.5);

Tailwind

colors: {
  custom: {
    50: '#6c4c51',
    500: '#310b14',
    950: '#000000',
  },
}

SCSS

$custom: #310b14;
$custom-light: #6c4c51;
$custom-dark: #000000;

JSON

{
  "hex": "#310b14",
  "rgb": {
    "r": 49,
    "g": 11,
    "b": 20
  },
  "hsl": {
    "h": 345.789,
    "s": 63.333,
    "l": 11.765
  },
  "oklch": {
    "l": 0.21917,
    "c": 0.06198,
    "h": 9.5
  },
  "luminance": 0.00943
}

Semantic roles & 50–950 ramp

primary

#310B14

secondary

#2A6E5E

accent

#E6BF41

background

#F6F4F4

surface

#ECE7E7

border

#C7C3C3

text

#070102

muted

#7A7778

Preview Lab

Preview with #310B14

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

Preview Lab → · Contrast checker → · Palette generator →