#51101E#51101E

#51101E is a dark, moderate red. Relative luminance 0.022; OKLCH L 29.3% C 0.095 H 13.1°. Best body text is #FFFFFF at 14.56:1 contrast (WCAG AA passes).

Color values

HEX	#51101E
RGB	rgb(81, 16, 30)
HSL	hsl(347, 67%, 19%)
HSV	hsv(347, 80%, 32%)
CMYK	cmyk(0%, 80.2%, 63%, 68.2%)
CIE-LAB	lab(16.57, 30.77, 8.71)
CIE-LCH	lch(16.57, 31.97, 15.80°)
OKLab	oklab(29.29% 0.0928 0.0216)
OKLCH	oklch(29.29% 0.095 13.1)
XYZ	xyz(3.8133, 2.2142, 1.4546)
Luminance	0.0221 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51101E #105143

analogous

#51103F #51101E #512310

triadic

#51101E #1E5110 #101E51

tetradic

#51101E #3F5110 #105143 #231051

square

#51101E #3F5110 #105143 #231051

split-complementary

#51101E #105123 #103F51

monochromatic

#1A0509 #1E060B #51101E #841A31 #B72444

Accessibility & contrast

On white

14.56

#51101E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.44

#51101E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #51101E

14.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51101E	#FFFFFF	#000000	##FFFFFF
##51101E	1.00	14.56	1.44	14.56
#FFFFFF	14.56	1.00	21.00	1.00
#000000	1.44	21.00	1.00	21.00
##FFFFFF	14.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#21201E

Deuteranopia (green-blind)

#322E1C

Tritanopia (blue-blind)

#590116

Achromatopsia (no color)

#292929

Design tokens & code

CSS

--color: #51101e;
/* rgb */ color: rgb(81, 16, 30);
/* oklch */ color: oklch(29.3% 0.095 13.1);

Tailwind

colors: {
  custom: {
    50: '#875459',
    500: '#51101e',
    950: '#000000',
  },
}

SCSS

$custom: #51101e;
$custom-light: #875459;
$custom-dark: #000000;

JSON

{
  "hex": "#51101e",
  "rgb": {
    "r": 81,
    "g": 16,
    "b": 30
  },
  "hsl": {
    "h": 347.077,
    "s": 67.01,
    "l": 19.02
  },
  "oklch": {
    "l": 0.29289,
    "c": 0.09524,
    "h": 13.1
  },
  "luminance": 0.02214
}

Semantic roles & 50–950 ramp

primary

#51101E

secondary

#328B78

accent

#EAC53E

background

#F8F5F5

surface

#F0E9E9

border

#CBC5C5

text

#0C0303

muted

#7D7878

Preview Lab

Preview with #51101E

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

Preview Lab → · Contrast checker → · Palette generator →