#310D16#310D16

#310D16 is a very dark, muted red. Relative luminance 0.010; OKLCH L 22.3% C 0.059 H 7.9°. Best body text is #FFFFFF at 17.50:1 contrast (WCAG AA passes).

Color values

HEX	#310D16
RGB	rgb(49, 13, 22)
HSL	hsl(345, 58%, 12%)
HSV	hsv(345, 73%, 19%)
CMYK	cmyk(0%, 73.5%, 55.1%, 80.8%)
CIE-LAB	lab(8.98, 19.26, 3.05)
CIE-LCH	lch(8.98, 19.50, 8.98°)
OKLab	oklab(22.29% 0.0586 0.0081)
OKLCH	oklch(22.29% 0.059 7.9)
XYZ	xyz(1.5555, 0.9989, 0.8698)
Luminance	0.0100 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#310D16 #0D3128

analogous

#310D28 #310D16 #31160D

triadic

#310D16 #16310D #0D1631

tetradic

#310D16 #28310D #0D3128 #160D31

square

#310D16 #28310D #0D3128 #160D31

split-complementary

#310D16 #0D3116 #0D2831

monochromatic

#18060B #18060B #310D16 #611A2C #922741

Accessibility & contrast

On white

17.50

#310D16 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.20

#310D16 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #310D16

17.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##310D16	#FFFFFF	#000000	##FFFFFF
##310D16	1.00	17.50	1.20	17.50
#FFFFFF	17.50	1.00	21.00	1.00
#000000	1.20	21.00	1.00	21.00
##FFFFFF	17.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#151516

Deuteranopia (green-blind)

#1E1C15

Tritanopia (blue-blind)

#360810

Achromatopsia (no color)

#191919

Design tokens & code

CSS

--color: #310d16;
/* rgb */ color: rgb(49, 13, 22);
/* oklch */ color: oklch(22.3% 0.059 7.9);

Tailwind

colors: {
  custom: {
    50: '#6c4e52',
    500: '#310d16',
    950: '#000000',
  },
}

SCSS

$custom: #310d16;
$custom-light: #6c4e52;
$custom-dark: #000000;

JSON

{
  "hex": "#310d16",
  "rgb": {
    "r": 49,
    "g": 13,
    "b": 22
  },
  "hsl": {
    "h": 345,
    "s": 58.065,
    "l": 12.157
  },
  "oklch": {
    "l": 0.22293,
    "c": 0.05913,
    "h": 7.9
  },
  "luminance": 0.00999
}

Semantic roles & 50–950 ramp

primary

#310D16

secondary

#2E6C5D

accent

#E1BB47

background

#F6F4F4

surface

#EBE7E7

border

#C6C3C3

text

#070102

muted

#7A7778

Preview Lab

Preview with #310D16

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

Preview Lab → · Contrast checker → · Palette generator →