#51100E#51100E

#51100E is a dark, moderate red. Relative luminance 0.022; OKLCH L 29.0% C 0.096 H 26.9°. Best body text is #FFFFFF at 14.68:1 contrast (WCAG AA passes).

Color values

HEX	#51100E
RGB	rgb(81, 16, 14)
HSL	hsl(2, 71%, 19%)
HSV	hsv(2, 83%, 32%)
CMYK	cmyk(0%, 80.2%, 82.7%, 68.2%)
CIE-LAB	lab(16.27, 29.74, 18.92)
CIE-LCH	lch(16.27, 35.24, 32.46°)
OKLab	oklab(28.96% 0.0857 0.0436)
OKLCH	oklch(28.96% 0.096 26.9)
XYZ	xyz(3.6583, 2.1522, 0.6382)
Luminance	0.0215 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51100E #0E4F51

analogous

#510E2D #51100E #51310E

triadic

#51100E #0E5110 #100E51

tetradic

#51100E #2D510E #0E4F51 #310E51

square

#51100E #2D510E #0E4F51 #310E51

split-complementary

#51100E #0E5131 #0E2D51

monochromatic

#1A0505 #1D0605 #51100E #851A17 #B92520

Accessibility & contrast

On white

14.68

#51100E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.43

#51100E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #51100E

14.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51100E	#FFFFFF	#000000	##FFFFFF
##51100E	1.00	14.68	1.43	14.68
#FFFFFF	14.68	1.00	21.00	1.00
#000000	1.43	21.00	1.00	21.00
##FFFFFF	14.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#231F0D

Deuteranopia (green-blind)

#332D0B

Tritanopia (blue-blind)

#5A0010

Achromatopsia (no color)

#282828

Design tokens & code

CSS

--color: #51100e;
/* rgb */ color: rgb(81, 16, 14);
/* oklch */ color: oklch(29.0% 0.096 26.9);

Tailwind

colors: {
  custom: {
    50: '#88544d',
    500: '#51100e',
    950: '#000000',
  },
}

SCSS

$custom: #51100e;
$custom-light: #88544d;
$custom-dark: #000000;

JSON

{
  "hex": "#51100e",
  "rgb": {
    "r": 81,
    "g": 16,
    "b": 14
  },
  "hsl": {
    "h": 1.791,
    "s": 70.526,
    "l": 18.627
  },
  "oklch": {
    "l": 0.28961,
    "c": 0.09616,
    "h": 26.9
  },
  "luminance": 0.02152
}

Semantic roles & 50–950 ramp

primary

#51100E

secondary

#2F898C

accent

#E8ED3A

background

#F8F5F4

surface

#F0E9E7

border

#CBC5C3

text

#0D0301

muted

#7D7877

Preview Lab

Preview with #51100E

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

Preview Lab → · Contrast checker → · Palette generator →