#310D10#310D10

#310D10 is a very dark, muted red. Relative luminance 0.010; OKLCH L 22.1% C 0.059 H 18.3°. Best body text is #FFFFFF at 17.56:1 contrast (WCAG AA passes).

Color values

HEX	#310D10
RGB	rgb(49, 13, 16)
HSL	hsl(355, 58%, 12%)
HSV	hsv(355, 73%, 19%)
CMYK	cmyk(0%, 73.5%, 67.3%, 80.8%)
CIE-LAB	lab(8.81, 18.59, 6.61)
CIE-LCH	lch(8.81, 19.73, 19.57°)
OKLab	oklab(22.11% 0.0556 0.0184)
OKLCH	oklch(22.11% 0.059 18.3)
XYZ	xyz(1.5042, 0.9784, 0.5998)
Luminance	0.0098 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#310D10 #0D312E

analogous

#310D22 #310D10 #311C0D

triadic

#310D10 #10310D #0D1031

tetradic

#310D10 #22310D #0D312E #1C0D31

square

#310D10 #22310D #0D312E #1C0D31

split-complementary

#310D10 #0D311C #0D2231

monochromatic

#180608 #180608 #310D10 #611A20 #922730

Accessibility & contrast

On white

17.56

#310D10 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.20

#310D10 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #310D10

17.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##310D10	#FFFFFF	#000000	##FFFFFF
##310D10	1.00	17.56	1.20	17.56
#FFFFFF	17.56	1.00	21.00	1.00
#000000	1.20	21.00	1.00	21.00
##FFFFFF	17.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#161410

Deuteranopia (green-blind)

#1F1C0F

Tritanopia (blue-blind)

#36070E

Achromatopsia (no color)

#191919

Design tokens & code

CSS

--color: #310d10;
/* rgb */ color: rgb(49, 13, 16);
/* oklch */ color: oklch(22.1% 0.059 18.3);

Tailwind

colors: {
  custom: {
    50: '#6c4d4e',
    500: '#310d10',
    950: '#000000',
  },
}

SCSS

$custom: #310d10;
$custom-light: #6c4d4e;
$custom-dark: #000000;

JSON

{
  "hex": "#310d10",
  "rgb": {
    "r": 49,
    "g": 13,
    "b": 16
  },
  "hsl": {
    "h": 355,
    "s": 58.065,
    "l": 12.157
  },
  "oklch": {
    "l": 0.22108,
    "c": 0.05858,
    "h": 18.3
  },
  "luminance": 0.00978
}

Semantic roles & 50–950 ramp

primary

#310D10

secondary

#2E6C67

accent

#E1D447

background

#F6F4F4

surface

#ECE7E7

border

#C7C3C3

text

#070101

muted

#7A7777

Preview Lab

Preview with #310D10

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

Preview Lab → · Contrast checker → · Palette generator →