#31030C#31030C

#31030C is a very dark, moderate red. Relative luminance 0.007; OKLCH L 20.5% C 0.074 H 14.6°. Best body text is #FFFFFF at 18.28:1 contrast (WCAG AA passes).

Color values

HEX	#31030C
RGB	rgb(49, 3, 12)
HSL	hsl(348, 88%, 10%)
HSV	hsv(348, 94%, 19%)
CMYK	cmyk(0%, 93.9%, 75.5%, 80.8%)
CIE-LAB	lab(6.73, 23.59, 5.60)
CIE-LCH	lch(6.73, 24.25, 13.35°)
OKLab	oklab(20.47% 0.0717 0.0187)
OKLCH	oklch(20.47% 0.074 14.6)
XYZ	xyz(1.3657, 0.7448, 0.4196)
Luminance	0.0075 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31030C #033128

analogous

#310323 #31030C #311103

triadic

#31030C #0C3103 #030C31

tetradic

#31030C #233103 #033128 #110331

square

#31030C #233103 #033128 #110331

split-complementary

#31030C #033111 #032331

monochromatic

#1D0207 #1D0207 #31030C #6B071A #A40A28

Accessibility & contrast

On white

18.28

#31030C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.15

#31030C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31030C

18.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31030C	#FFFFFF	#000000	##FFFFFF
##31030C	1.00	18.28	1.15	18.28
#FFFFFF	18.28	1.00	21.00	1.00
#000000	1.15	21.00	1.00	21.00
##FFFFFF	18.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0F0F0C

Deuteranopia (green-blind)

#1B180B

Tritanopia (blue-blind)

#370006

Achromatopsia (no color)

#151515

Design tokens & code

CSS

--color: #31030c;
/* rgb */ color: rgb(49, 3, 12);
/* oklch */ color: oklch(20.5% 0.074 14.6);

Tailwind

colors: {
  custom: {
    50: '#6d484c',
    500: '#31030c',
    950: '#000000',
  },
}

SCSS

$custom: #31030c;
$custom-light: #6d484c;
$custom-dark: #000000;

JSON

{
  "hex": "#31030c",
  "rgb": {
    "r": 49,
    "g": 3,
    "b": 12
  },
  "hsl": {
    "h": 348.261,
    "s": 88.462,
    "l": 10.196
  },
  "oklch": {
    "l": 0.2047,
    "c": 0.0741,
    "h": 14.6
  },
  "luminance": 0.00745
}

Semantic roles & 50–950 ramp

primary

#31030C

secondary

#1B7463

accent

#FFD529

background

#F6F4F4

surface

#ECE6E7

border

#C7C2C3

text

#070001

muted

#7A7777

Preview Lab

Preview with #31030C

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

Preview Lab → · Contrast checker → · Palette generator →