#51181E#51181E

#51181E is a dark, moderate red. Relative luminance 0.025; OKLCH L 30.3% C 0.085 H 17.7°. Best body text is #FFFFFF at 14.01:1 contrast (WCAG AA passes).

Color values

HEX	#51181E
RGB	rgb(81, 24, 30)
HSL	hsl(354, 54%, 21%)
HSV	hsv(354, 70%, 32%)
CMYK	cmyk(0%, 70.4%, 63%, 68.2%)
CIE-LAB	lab(17.90, 27.12, 10.49)
CIE-LCH	lch(17.90, 29.08, 21.15°)
OKLab	oklab(30.28% 0.0811 0.0259)
OKLCH	oklch(30.28% 0.085 17.7)
XYZ	xyz(3.9547, 2.4969, 1.5017)
Luminance	0.0250 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51181E #18514B

analogous

#51183A #51181E #512E18

triadic

#51181E #1E5118 #181E51

tetradic

#51181E #3A5118 #18514B #2E1851

square

#51181E #3A5118 #18514B #2E1851

split-complementary

#51181E #18512E #183A51

monochromatic

#180709 #220A0D #51181E #80262F #AF3441

Accessibility & contrast

On white

14.01

#51181E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.50

#51181E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #51181E

14.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51181E	#FFFFFF	#000000	##FFFFFF
##51181E	1.00	14.01	1.50	14.01
#FFFFFF	14.01	1.00	21.00	1.00
#000000	1.50	21.00	1.00	21.00
##FFFFFF	14.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#26241E

Deuteranopia (green-blind)

#35301D

Tritanopia (blue-blind)

#590D1B

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #51181e;
/* rgb */ color: rgb(81, 24, 30);
/* oklch */ color: oklch(30.3% 0.085 17.7);

Tailwind

colors: {
  custom: {
    50: '#865859',
    500: '#51181e',
    950: '#000000',
  },
}

SCSS

$custom: #51181e;
$custom-light: #865859;
$custom-dark: #000000;

JSON

{
  "hex": "#51181e",
  "rgb": {
    "r": 81,
    "g": 24,
    "b": 30
  },
  "hsl": {
    "h": 353.684,
    "s": 54.286,
    "l": 20.588
  },
  "oklch": {
    "l": 0.3028,
    "c": 0.08512,
    "h": 17.7
  },
  "luminance": 0.02496
}

Semantic roles & 50–950 ramp

primary

#51181E

secondary

#3D8880

accent

#DECE4A

background

#F8F5F5

surface

#F0E9E9

border

#CBC5C5

text

#0C0303

muted

#7D7878

Preview Lab

Preview with #51181E

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

Preview Lab → · Contrast checker → · Palette generator →