#31050A#31050A

#31050A is a very dark, moderate red. Relative luminance 0.008; OKLCH L 20.7% C 0.071 H 19.1°. Best body text is #FFFFFF at 18.16:1 contrast (WCAG AA passes).

Color values

HEX	#31050A
RGB	rgb(49, 5, 10)
HSL	hsl(353, 81%, 11%)
HSV	hsv(353, 90%, 19%)
CMYK	cmyk(0%, 89.8%, 79.6%, 80.8%)
CIE-LAB	lab(7.08, 22.38, 6.97)
CIE-LCH	lch(7.08, 23.44, 17.30°)
OKLab	oklab(20.74% 0.0668 0.0231)
OKLCH	oklch(20.74% 0.071 19.1)
XYZ	xyz(1.3758, 0.7836, 0.3659)
Luminance	0.0078 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31050A #05312C

analogous

#310520 #31050A #311605

triadic

#31050A #0A3105 #050A31

tetradic

#31050A #203105 #05312C #160531

square

#31050A #203105 #05312C #160531

split-complementary

#31050A #053116 #052031

monochromatic

#1C0306 #1C0306 #31050A #690B15 #A01021

Accessibility & contrast

On white

18.16

#31050A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.16

#31050A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31050A

18.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31050A	#FFFFFF	#000000	##FFFFFF
##31050A	1.00	18.16	1.16	18.16
#FFFFFF	18.16	1.00	21.00	1.00
#000000	1.16	21.00	1.00	21.00
##FFFFFF	18.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#11100A

Deuteranopia (green-blind)

#1C1909

Tritanopia (blue-blind)

#370007

Achromatopsia (no color)

#161616

Design tokens & code

CSS

--color: #31050a;
/* rgb */ color: rgb(49, 5, 10);
/* oklch */ color: oklch(20.7% 0.071 19.1);

Tailwind

colors: {
  custom: {
    50: '#6d494b',
    500: '#31050a',
    950: '#000000',
  },
}

SCSS

$custom: #31050a;
$custom-light: #6d494b;
$custom-dark: #000000;

JSON

{
  "hex": "#31050a",
  "rgb": {
    "r": 49,
    "g": 5,
    "b": 10
  },
  "hsl": {
    "h": 353.182,
    "s": 81.481,
    "l": 10.588
  },
  "oklch": {
    "l": 0.20742,
    "c": 0.07068,
    "h": 19.1
  },
  "luminance": 0.00783
}

Semantic roles & 50–950 ramp

primary

#31050A

secondary

#1F7269

accent

#F8E130

background

#F6F4F4

surface

#ECE7E7

border

#C7C3C3

text

#070101

muted

#7A7777

Preview Lab

Preview with #31050A

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

Preview Lab → · Contrast checker → · Palette generator →