#51181A#51181A

#51181A is a dark, moderate red. Relative luminance 0.025; OKLCH L 30.2% C 0.085 H 21.8°. Best body text is #FFFFFF at 14.04:1 contrast (WCAG AA passes).

Color values

HEX	#51181A
RGB	rgb(81, 24, 26)
HSL	hsl(358, 54%, 21%)
HSV	hsv(358, 70%, 32%)
CMYK	cmyk(0%, 70.4%, 67.9%, 68.2%)
CIE-LAB	lab(17.82, 26.79, 13.19)
CIE-LCH	lch(17.82, 29.86, 26.22°)
OKLab	oklab(30.19% 0.0793 0.0317)
OKLCH	oklch(30.19% 0.085 21.8)
XYZ	xyz(3.9068, 2.4777, 1.2496)
Luminance	0.0248 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51181A #18514F

analogous

#511836 #51181A #513218

triadic

#51181A #1A5118 #181A51

tetradic

#51181A #365118 #18514F #321851

square

#51181A #365118 #18514F #321851

split-complementary

#51181A #185132 #183651

monochromatic

#180708 #220A0B #51181A #802629 #AF3438

Accessibility & contrast

On white

14.04

#51181A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.50

#51181A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #51181A

14.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51181A	#FFFFFF	#000000	##FFFFFF
##51181A	1.00	14.04	1.50	14.04
#FFFFFF	14.04	1.00	21.00	1.00
#000000	1.50	21.00	1.00	21.00
##FFFFFF	14.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#27241A

Deuteranopia (green-blind)

#353019

Tritanopia (blue-blind)

#590C19

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #51181a;
/* rgb */ color: rgb(81, 24, 26);
/* oklch */ color: oklch(30.2% 0.085 21.8);

Tailwind

colors: {
  custom: {
    50: '#865856',
    500: '#51181a',
    950: '#000000',
  },
}

SCSS

$custom: #51181a;
$custom-light: #865856;
$custom-dark: #000000;

JSON

{
  "hex": "#51181a",
  "rgb": {
    "r": 81,
    "g": 24,
    "b": 26
  },
  "hsl": {
    "h": 357.895,
    "s": 54.286,
    "l": 20.588
  },
  "oklch": {
    "l": 0.30187,
    "c": 0.08538,
    "h": 21.8
  },
  "luminance": 0.02477
}

Semantic roles & 50–950 ramp

primary

#51181A

secondary

#3D8885

accent

#DED84A

background

#F8F5F5

surface

#F0E9E9

border

#CBC5C5

text

#0C0303

muted

#7D7878

Preview Lab

Preview with #51181A

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

Preview Lab → · Contrast checker → · Palette generator →