#310D15#310D15

#310D15 is a very dark, muted red. Relative luminance 0.010; OKLCH L 22.3% C 0.059 H 9.6°. Best body text is #FFFFFF at 17.51:1 contrast (WCAG AA passes).

Color values

HEX	#310D15
RGB	rgb(49, 13, 21)
HSL	hsl(347, 58%, 12%)
HSV	hsv(347, 73%, 19%)
CMYK	cmyk(0%, 73.5%, 57.1%, 80.8%)
CIE-LAB	lab(8.95, 19.14, 3.70)
CIE-LCH	lch(8.95, 19.50, 10.95°)
OKLab	oklab(22.26% 0.0581 0.0099)
OKLCH	oklch(22.26% 0.059 9.6)
XYZ	xyz(1.5460, 0.9951, 0.8200)
Luminance	0.0100 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#310D15 #0D3129

analogous

#310D27 #310D15 #31170D

triadic

#310D15 #15310D #0D1531

tetradic

#310D15 #27310D #0D3129 #170D31

square

#310D15 #27310D #0D3129 #170D31

split-complementary

#310D15 #0D3117 #0D2731

monochromatic

#18060A #18060A #310D15 #611A2A #92273E

Accessibility & contrast

On white

17.51

#310D15 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.20

#310D15 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #310D15

17.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##310D15	#FFFFFF	#000000	##FFFFFF
##310D15	1.00	17.51	1.20	17.51
#FFFFFF	17.51	1.00	21.00	1.00
#000000	1.20	21.00	1.00	21.00
##FFFFFF	17.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#151515

Deuteranopia (green-blind)

#1E1C14

Tritanopia (blue-blind)

#360810

Achromatopsia (no color)

#191919

Design tokens & code

CSS

--color: #310d15;
/* rgb */ color: rgb(49, 13, 21);
/* oklch */ color: oklch(22.3% 0.059 9.6);

Tailwind

colors: {
  custom: {
    50: '#6c4d52',
    500: '#310d15',
    950: '#000000',
  },
}

SCSS

$custom: #310d15;
$custom-light: #6c4d52;
$custom-dark: #000000;

JSON

{
  "hex": "#310d15",
  "rgb": {
    "r": 49,
    "g": 13,
    "b": 21
  },
  "hsl": {
    "h": 346.667,
    "s": 58.065,
    "l": 12.157
  },
  "oklch": {
    "l": 0.22259,
    "c": 0.05892,
    "h": 9.6
  },
  "luminance": 0.00995
}

Semantic roles & 50–950 ramp

primary

#310D15

secondary

#2E6C5E

accent

#E1BF47

background

#F6F4F4

surface

#EBE7E7

border

#C6C3C3

text

#070102

muted

#7A7778

Preview Lab

Preview with #310D15

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

Preview Lab → · Contrast checker → · Palette generator →