#310D0F#310D0F

#310D0F is a very dark, muted red. Relative luminance 0.010; OKLCH L 22.1% C 0.059 H 20.0°. Best body text is #FFFFFF at 17.57:1 contrast (WCAG AA passes).

Color values

HEX	#310D0F
RGB	rgb(49, 13, 15)
HSL	hsl(357, 58%, 12%)
HSV	hsv(357, 73%, 19%)
CMYK	cmyk(0%, 73.5%, 69.4%, 80.8%)
CIE-LAB	lab(8.79, 18.50, 7.12)
CIE-LCH	lch(8.79, 19.82, 21.05°)
OKLab	oklab(22.08% 0.0551 0.0201)
OKLCH	oklch(22.08% 0.059 20)
XYZ	xyz(1.4969, 0.9755, 0.5613)
Luminance	0.0097 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#310D0F #0D312F

analogous

#310D21 #310D0F #311D0D

triadic

#310D0F #0F310D #0D0F31

tetradic

#310D0F #21310D #0D312F #1D0D31

square

#310D0F #21310D #0D312F #1D0D31

split-complementary

#310D0F #0D311D #0D2131

monochromatic

#180607 #180607 #310D0F #611A1E #92272D

Accessibility & contrast

On white

17.57

#310D0F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.20

#310D0F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #310D0F

17.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##310D0F	#FFFFFF	#000000	##FFFFFF
##310D0F	1.00	17.57	1.20	17.57
#FFFFFF	17.57	1.00	21.00	1.00
#000000	1.20	21.00	1.00	21.00
##FFFFFF	17.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#16140F

Deuteranopia (green-blind)

#1F1C0E

Tritanopia (blue-blind)

#36070E

Achromatopsia (no color)

#191919

Design tokens & code

CSS

--color: #310d0f;
/* rgb */ color: rgb(49, 13, 15);
/* oklch */ color: oklch(22.1% 0.059 20.0);

Tailwind

colors: {
  custom: {
    50: '#6c4d4e',
    500: '#310d0f',
    950: '#000000',
  },
}

SCSS

$custom: #310d0f;
$custom-light: #6c4d4e;
$custom-dark: #000000;

JSON

{
  "hex": "#310d0f",
  "rgb": {
    "r": 49,
    "g": 13,
    "b": 15
  },
  "hsl": {
    "h": 356.667,
    "s": 58.065,
    "l": 12.157
  },
  "oklch": {
    "l": 0.22081,
    "c": 0.05864,
    "h": 20
  },
  "luminance": 0.00975
}

Semantic roles & 50–950 ramp

primary

#310D0F

secondary

#2E6C69

accent

#E1D947

background

#F6F4F4

surface

#ECE7E7

border

#C7C3C3

text

#070101

muted

#7A7777

Preview Lab

Preview with #310D0F

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

Preview Lab → · Contrast checker → · Palette generator →