#31020A#31020A

#31020A is a very dark, moderate red. Relative luminance 0.007; OKLCH L 20.3% C 0.076 H 16.3°. Best body text is #FFFFFF at 18.36:1 contrast (WCAG AA passes).

Color values

HEX	#31020A
RGB	rgb(49, 2, 10)
HSL	hsl(350, 92%, 10%)
HSV	hsv(350, 96%, 19%)
CMYK	cmyk(0%, 95.9%, 79.6%, 80.8%)
CIE-LAB	lab(6.49, 23.95, 6.11)
CIE-LCH	lch(6.49, 24.71, 14.32°)
OKLab	oklab(20.26% 0.0728 0.0212)
OKLCH	oklch(20.26% 0.076 16.3)
XYZ	xyz(1.3433, 0.7185, 0.3551)
Luminance	0.0072 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31020A #023129

analogous

#310222 #31020A #311102

triadic

#31020A #0A3102 #020A31

tetradic

#31020A #223102 #023129 #110231

square

#31020A #223102 #023129 #110231

split-complementary

#31020A #023111 #022231

monochromatic

#1D0106 #1D0106 #31020A #6C0416 #A70722

Accessibility & contrast

On white

18.36

#31020A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.14

#31020A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31020A

18.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31020A	#FFFFFF	#000000	##FFFFFF
##31020A	1.00	18.36	1.14	18.36
#FFFFFF	18.36	1.00	21.00	1.00
#000000	1.14	21.00	1.00	21.00
##FFFFFF	18.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0F0E0A

Deuteranopia (green-blind)

#1B1809

Tritanopia (blue-blind)

#370005

Achromatopsia (no color)

#141414

Design tokens & code

CSS

--color: #31020a;
/* rgb */ color: rgb(49, 2, 10);
/* oklch */ color: oklch(20.3% 0.076 16.3);

Tailwind

colors: {
  custom: {
    50: '#6d474b',
    500: '#31020a',
    950: '#000000',
  },
}

SCSS

$custom: #31020a;
$custom-light: #6d474b;
$custom-dark: #000000;

JSON

{
  "hex": "#31020a",
  "rgb": {
    "r": 49,
    "g": 2,
    "b": 10
  },
  "hsl": {
    "h": 349.787,
    "s": 92.157,
    "l": 10
  },
  "oklch": {
    "l": 0.20256,
    "c": 0.07582,
    "h": 16.3
  },
  "luminance": 0.00718
}

Semantic roles & 50–950 ramp

primary

#31020A

secondary

#197566

accent

#FFDB29

background

#F6F4F4

surface

#ECE6E7

border

#C7C2C3

text

#070001

muted

#7A7777

Preview Lab

Preview with #31020A

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

Preview Lab → · Contrast checker → · Palette generator →