#51111B#51111B

#51111B is a dark, moderate red. Relative luminance 0.022; OKLCH L 29.3% C 0.094 H 16.5°. Best body text is #FFFFFF at 14.52:1 contrast (WCAG AA passes).

Color values

HEX	#51111B
RGB	rgb(81, 17, 27)
HSL	hsl(351, 65%, 19%)
HSV	hsv(351, 79%, 32%)
CMYK	cmyk(0%, 79%, 66.7%, 68.2%)
CIE-LAB	lab(16.65, 30.12, 10.97)
CIE-LCH	lch(16.65, 32.05, 20.01°)
OKLab	oklab(29.32% 0.0901 0.0267)
OKLCH	oklch(29.32% 0.094 16.5)
XYZ	xyz(3.7920, 2.2299, 1.2674)
Luminance	0.0223 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51111B #115147

analogous

#51113B #51111B #512711

triadic

#51111B #1B5111 #111B51

tetradic

#51111B #3B5111 #115147 #271151

square

#51111B #3B5111 #115147 #271151

split-complementary

#51111B #115127 #113B51

monochromatic

#190508 #1E060A #51111B #841C2C #B6263D

Accessibility & contrast

On white

14.52

#51111B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.45

#51111B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #51111B

14.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51111B	#FFFFFF	#000000	##FFFFFF
##51111B	1.00	14.52	1.45	14.52
#FFFFFF	14.52	1.00	21.00	1.00
#000000	1.45	21.00	1.00	21.00
##FFFFFF	14.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#22211B

Deuteranopia (green-blind)

#332E19

Tritanopia (blue-blind)

#590115

Achromatopsia (no color)

#292929

Design tokens & code

CSS

--color: #51111b;
/* rgb */ color: rgb(81, 17, 27);
/* oklch */ color: oklch(29.3% 0.094 16.5);

Tailwind

colors: {
  custom: {
    50: '#875557',
    500: '#51111b',
    950: '#000000',
  },
}

SCSS

$custom: #51111b;
$custom-light: #875557;
$custom-dark: #000000;

JSON

{
  "hex": "#51111b",
  "rgb": {
    "r": 81,
    "g": 17,
    "b": 27
  },
  "hsl": {
    "h": 350.625,
    "s": 65.306,
    "l": 19.216
  },
  "oklch": {
    "l": 0.29322,
    "c": 0.09394,
    "h": 16.5
  },
  "luminance": 0.02229
}

Semantic roles & 50–950 ramp

primary

#51111B

secondary

#348A7D

accent

#E8CE40

background

#F8F5F5

surface

#F0E9E9

border

#CBC5C5

text

#0C0303

muted

#7D7878

Preview Lab

Preview with #51111B

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

Preview Lab → · Contrast checker → · Palette generator →