#51151F#51151F

#51151F is a dark, moderate red. Relative luminance 0.024; OKLCH L 29.9% C 0.089 H 14.7°. Best body text is #FFFFFF at 14.22:1 contrast (WCAG AA passes).

Color values

HEX	#51151F
RGB	rgb(81, 21, 31)
HSL	hsl(350, 59%, 20%)
HSV	hsv(350, 74%, 32%)
CMYK	cmyk(0%, 74.1%, 61.7%, 68.2%)
CIE-LAB	lab(17.39, 28.67, 9.09)
CIE-LCH	lch(17.39, 30.07, 17.60°)
OKLab	oklab(29.9% 0.0862 0.0226)
OKLCH	oklch(29.9% 0.089 14.7)
XYZ	xyz(3.9092, 2.3851, 1.5506)
Luminance	0.0238 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51151F #155147

analogous

#51153D #51151F #512915

triadic

#51151F #1F5115 #151F51

tetradic

#51151F #3D5115 #155147 #291551

square

#51151F #3D5115 #155147 #291551

split-complementary

#51151F #155129 #153D51

monochromatic

#180609 #20080C #51151F #822232 #B22E44

Accessibility & contrast

On white

14.22

#51151F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.48

#51151F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #51151F

14.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51151F	#FFFFFF	#000000	##FFFFFF
##51151F	1.00	14.22	1.48	14.22
#FFFFFF	14.22	1.00	21.00	1.00
#000000	1.48	21.00	1.00	21.00
##FFFFFF	14.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#24231F

Deuteranopia (green-blind)

#332F1D

Tritanopia (blue-blind)

#590819

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #51151f;
/* rgb */ color: rgb(81, 21, 31);
/* oklch */ color: oklch(29.9% 0.089 14.7);

Tailwind

colors: {
  custom: {
    50: '#86575a',
    500: '#51151f',
    950: '#000000',
  },
}

SCSS

$custom: #51151f;
$custom-light: #86575a;
$custom-dark: #000000;

JSON

{
  "hex": "#51151f",
  "rgb": {
    "r": 81,
    "g": 21,
    "b": 31
  },
  "hsl": {
    "h": 350,
    "s": 58.824,
    "l": 20
  },
  "oklch": {
    "l": 0.29904,
    "c": 0.08913,
    "h": 14.7
  },
  "luminance": 0.02385
}

Semantic roles & 50–950 ramp

primary

#51151F

secondary

#39897C

accent

#E2C846

background

#F8F5F5

surface

#F0E9E9

border

#CBC5C5

text

#0C0303

muted

#7D7878

Preview Lab

Preview with #51151F

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

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