#31040E#31040E

#31040E is a very dark, moderate red. Relative luminance 0.008; OKLCH L 20.7% C 0.072 H 12.7°. Best body text is #FFFFFF at 18.19:1 contrast (WCAG AA passes).

Color values

HEX	#31040E
RGB	rgb(49, 4, 14)
HSL	hsl(347, 85%, 10%)
HSV	hsv(347, 92%, 19%)
CMYK	cmyk(0%, 91.8%, 71.4%, 80.8%)
CIE-LAB	lab(6.97, 23.24, 4.99)
CIE-LCH	lch(6.97, 23.77, 12.12°)
OKLab	oklab(20.69% 0.0707 0.016)
OKLCH	oklch(20.69% 0.073 12.7)
XYZ	xyz(1.3894, 0.7717, 0.4912)
Luminance	0.0077 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31040E #043127

analogous

#310424 #31040E #311004

triadic

#31040E #0E3104 #040E31

tetradic

#31040E #243104 #043127 #100431

square

#31040E #243104 #043127 #100431

split-complementary

#31040E #043110 #042431

monochromatic

#1C0208 #1C0208 #31040E #6A091E #A20D2E

Accessibility & contrast

On white

18.19

#31040E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.15

#31040E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31040E

18.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31040E	#FFFFFF	#000000	##FFFFFF
##31040E	1.00	18.19	1.15	18.19
#FFFFFF	18.19	1.00	21.00	1.00
#000000	1.15	21.00	1.00	21.00
##FFFFFF	18.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#100F0E

Deuteranopia (green-blind)

#1C190D

Tritanopia (blue-blind)

#370008

Achromatopsia (no color)

#151515

Design tokens & code

CSS

--color: #31040e;
/* rgb */ color: rgb(49, 4, 14);
/* oklch */ color: oklch(20.7% 0.072 12.7);

Tailwind

colors: {
  custom: {
    50: '#6d484d',
    500: '#31040e',
    950: '#000000',
  },
}

SCSS

$custom: #31040e;
$custom-light: #6d484d;
$custom-dark: #000000;

JSON

{
  "hex": "#31040e",
  "rgb": {
    "r": 49,
    "g": 4,
    "b": 14
  },
  "hsl": {
    "h": 346.667,
    "s": 84.906,
    "l": 10.392
  },
  "oklch": {
    "l": 0.20686,
    "c": 0.0725,
    "h": 12.7
  },
  "luminance": 0.00772
}

Semantic roles & 50–950 ramp

primary

#31040E

secondary

#1D7360

accent

#FBCD2D

background

#F6F4F4

surface

#ECE7E7

border

#C7C3C3

text

#070101

muted

#7A7777

Preview Lab

Preview with #31040E

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

Preview Lab → · Contrast checker → · Palette generator →