#51191B#51191B

#51191B is a dark, moderate red. Relative luminance 0.025; OKLCH L 30.4% C 0.084 H 21.6°. Best body text is #FFFFFF at 13.96:1 contrast (WCAG AA passes).

Color values

HEX	#51191B
RGB	rgb(81, 25, 27)
HSL	hsl(358, 53%, 21%)
HSV	hsv(358, 69%, 32%)
CMYK	cmyk(0%, 69.1%, 66.7%, 68.2%)
CIE-LAB	lab(18.03, 26.36, 12.76)
CIE-LCH	lch(18.03, 29.29, 25.84°)
OKLab	oklab(30.35% 0.0781 0.0309)
OKLCH	oklch(30.35% 0.084 21.6)
XYZ	xyz(3.9392, 2.5242, 1.3165)
Luminance	0.0252 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51191B #19514F

analogous

#511937 #51191B #513319

triadic

#51191B #1B5119 #191B51

tetradic

#51191B #375119 #19514F #331951

square

#51191B #375119 #19514F #331951

split-complementary

#51191B #195133 #193751

monochromatic

#170708 #220B0B #51191B #80272B #AF363A

Accessibility & contrast

On white

13.96

#51191B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.50

#51191B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #51191B

13.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51191B	#FFFFFF	#000000	##FFFFFF
##51191B	1.00	13.96	1.50	13.96
#FFFFFF	13.96	1.00	21.00	1.00
#000000	1.50	21.00	1.00	21.00
##FFFFFF	13.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#27251B

Deuteranopia (green-blind)

#35301A

Tritanopia (blue-blind)

#590E1A

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #51191b;
/* rgb */ color: rgb(81, 25, 27);
/* oklch */ color: oklch(30.4% 0.084 21.6);

Tailwind

colors: {
  custom: {
    50: '#865957',
    500: '#51191b',
    950: '#000000',
  },
}

SCSS

$custom: #51191b;
$custom-light: #865957;
$custom-dark: #000000;

JSON

{
  "hex": "#51191b",
  "rgb": {
    "r": 81,
    "g": 25,
    "b": 27
  },
  "hsl": {
    "h": 357.857,
    "s": 52.83,
    "l": 20.784
  },
  "oklch": {
    "l": 0.30351,
    "c": 0.08398,
    "h": 21.6
  },
  "luminance": 0.02524
}

Semantic roles & 50–950 ramp

primary

#51191B

secondary

#3E8785

accent

#DCD74C

background

#F8F5F5

surface

#F0E9E9

border

#CBC5C5

text

#0C0403

muted

#7D7978

Preview Lab

Preview with #51191B

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

Preview Lab → · Contrast checker → · Palette generator →