#51101D#51101D

#51101D is a dark, moderate red. Relative luminance 0.022; OKLCH L 29.3% C 0.095 H 14.1°. Best body text is #FFFFFF at 14.57:1 contrast (WCAG AA passes).

Color values

HEX	#51101D
RGB	rgb(81, 16, 29)
HSL	hsl(348, 67%, 19%)
HSV	hsv(348, 80%, 32%)
CMYK	cmyk(0%, 80.2%, 64.2%, 68.2%)
CIE-LAB	lab(16.55, 30.68, 9.39)
CIE-LCH	lch(16.55, 32.09, 17.02°)
OKLab	oklab(29.26% 0.0923 0.0232)
OKLCH	oklch(29.26% 0.095 14.1)
XYZ	xyz(3.8008, 2.2092, 1.3884)
Luminance	0.0221 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51101D #105144

analogous

#51103E #51101D #512410

triadic

#51101D #1D5110 #101D51

tetradic

#51101D #3E5110 #105144 #241051

square

#51101D #3E5110 #105144 #241051

split-complementary

#51101D #105124 #103E51

monochromatic

#1A0509 #1E060B #51101D #841A2F #B72442

Accessibility & contrast

On white

14.57

#51101D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.44

#51101D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #51101D

14.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51101D	#FFFFFF	#000000	##FFFFFF
##51101D	1.00	14.57	1.44	14.57
#FFFFFF	14.57	1.00	21.00	1.00
#000000	1.44	21.00	1.00	21.00
##FFFFFF	14.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#21201D

Deuteranopia (green-blind)

#322E1B

Tritanopia (blue-blind)

#590115

Achromatopsia (no color)

#292929

Design tokens & code

CSS

--color: #51101d;
/* rgb */ color: rgb(81, 16, 29);
/* oklch */ color: oklch(29.3% 0.095 14.1);

Tailwind

colors: {
  custom: {
    50: '#875458',
    500: '#51101d',
    950: '#000000',
  },
}

SCSS

$custom: #51101d;
$custom-light: #875458;
$custom-dark: #000000;

JSON

{
  "hex": "#51101d",
  "rgb": {
    "r": 81,
    "g": 16,
    "b": 29
  },
  "hsl": {
    "h": 348,
    "s": 67.01,
    "l": 19.02
  },
  "oklch": {
    "l": 0.29262,
    "c": 0.09517,
    "h": 14.1
  },
  "luminance": 0.02209
}

Semantic roles & 50–950 ramp

primary

#51101D

secondary

#328B79

accent

#EAC83E

background

#F8F5F5

surface

#F0E9E9

border

#CBC5C5

text

#0C0303

muted

#7D7878

Preview Lab

Preview with #51101D

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

Preview Lab → · Contrast checker → · Palette generator →