#31070A#31070A

#31070A is a very dark, moderate red. Relative luminance 0.008; OKLCH L 21.1% C 0.068 H 21.1°. Best body text is #FFFFFF at 18.02:1 contrast (WCAG AA passes).

Color values

HEX	#31070A
RGB	rgb(49, 7, 10)
HSL	hsl(356, 75%, 11%)
HSV	hsv(356, 86%, 19%)
CMYK	cmyk(0%, 85.7%, 79.6%, 80.8%)
CIE-LAB	lab(7.47, 21.33, 7.54)
CIE-LCH	lch(7.47, 22.62, 19.48°)
OKLab	oklab(21.05% 0.0631 0.0243)
OKLCH	oklch(21.05% 0.068 21.1)
XYZ	xyz(1.3975, 0.8270, 0.3731)
Luminance	0.0083 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31070A #07312E

analogous

#31071F #31070A #311907

triadic

#31070A #0A3107 #070A31

tetradic

#31070A #1F3107 #07312E #190731

square

#31070A #1F3107 #07312E #190731

split-complementary

#31070A #073119 #071F31

monochromatic

#1B0405 #1B0405 #31070A #670F15 #9C1620

Accessibility & contrast

On white

18.02

#31070A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.17

#31070A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31070A

18.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31070A	#FFFFFF	#000000	##FFFFFF
##31070A	1.00	18.02	1.17	18.02
#FFFFFF	18.02	1.00	21.00	1.00
#000000	1.17	21.00	1.00	21.00
##FFFFFF	18.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#13110A

Deuteranopia (green-blind)

#1D1A09

Tritanopia (blue-blind)

#370008

Achromatopsia (no color)

#161616

Design tokens & code

CSS

--color: #31070a;
/* rgb */ color: rgb(49, 7, 10);
/* oklch */ color: oklch(21.1% 0.068 21.1);

Tailwind

colors: {
  custom: {
    50: '#6d4a4b',
    500: '#31070a',
    950: '#000000',
  },
}

SCSS

$custom: #31070a;
$custom-light: #6d4a4b;
$custom-dark: #000000;

JSON

{
  "hex": "#31070a",
  "rgb": {
    "r": 49,
    "g": 7,
    "b": 10
  },
  "hsl": {
    "h": 355.714,
    "s": 75,
    "l": 10.98
  },
  "oklch": {
    "l": 0.21052,
    "c": 0.0676,
    "h": 21.1
  },
  "luminance": 0.00827
}

Semantic roles & 50–950 ramp

primary

#31070A

secondary

#23716B

accent

#F2E436

background

#F6F4F4

surface

#ECE7E7

border

#C7C3C3

text

#070101

muted

#7A7777

Preview Lab

Preview with #31070A

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

Preview Lab → · Contrast checker → · Palette generator →