#310F09#310F09

#310F09 is a very dark, muted red. Relative luminance 0.010; OKLCH L 22.3% C 0.057 H 32.0°. Best body text is #FFFFFF at 17.46:1 contrast (WCAG AA passes).

Color values

HEX	#310F09
RGB	rgb(49, 15, 9)
HSL	hsl(9, 69%, 11%)
HSV	hsv(9, 82%, 19%)
CMYK	cmyk(0%, 69.4%, 81.6%, 80.8%)
CIE-LAB	lab(9.11, 16.81, 10.33)
CIE-LCH	lch(9.11, 19.73, 31.58°)
OKLab	oklab(22.29% 0.0484 0.0303)
OKLCH	oklch(22.29% 0.057 32)
XYZ	xyz(1.4869, 1.0145, 0.3759)
Luminance	0.0101 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#310F09 #092B31

analogous

#310917 #310F09 #312309

triadic

#310F09 #09310F #0F0931

tetradic

#310F09 #173109 #092B31 #230931

square

#310F09 #173109 #092B31 #230931

split-complementary

#310F09 #093123 #091731

monochromatic

#1A0805 #1A0805 #310F09 #651F12 #982F1C

Accessibility & contrast

On white

17.46

#310F09 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.20

#310F09 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #310F09

17.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##310F09	#FFFFFF	#000000	##FFFFFF
##310F09	1.00	17.46	1.20	17.46
#FFFFFF	17.46	1.00	21.00	1.00
#000000	1.20	21.00	1.00	21.00
##FFFFFF	17.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#181508

Deuteranopia (green-blind)

#201C08

Tritanopia (blue-blind)

#37080E

Achromatopsia (no color)

#1A1A1A

Design tokens & code

CSS

--color: #310f09;
/* rgb */ color: rgb(49, 15, 9);
/* oklch */ color: oklch(22.3% 0.057 32.0);

Tailwind

colors: {
  custom: {
    50: '#6c4e4a',
    500: '#310f09',
    950: '#000000',
  },
}

SCSS

$custom: #310f09;
$custom-light: #6c4e4a;
$custom-dark: #000000;

JSON

{
  "hex": "#310f09",
  "rgb": {
    "r": 49,
    "g": 15,
    "b": 9
  },
  "hsl": {
    "h": 9,
    "s": 68.966,
    "l": 11.373
  },
  "oklch": {
    "l": 0.22287,
    "c": 0.05711,
    "h": 32
  },
  "luminance": 0.01014
}

Semantic roles & 50–950 ramp

primary

#310F09

secondary

#27646F

accent

#D1EC3C

background

#F6F4F4

surface

#ECE7E7

border

#C7C3C3

text

#070201

muted

#7A7877

Preview Lab

Preview with #310F09

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

Preview Lab → · Contrast checker → · Palette generator →