#51131F#51131F

#51131F is a dark, moderate red. Relative luminance 0.023; OKLCH L 29.7% C 0.092 H 13.6°. Best body text is #FFFFFF at 14.36:1 contrast (WCAG AA passes).

Color values

HEX	#51131F
RGB	rgb(81, 19, 31)
HSL	hsl(348, 62%, 20%)
HSV	hsv(348, 77%, 32%)
CMYK	cmyk(0%, 76.5%, 61.7%, 68.2%)
CIE-LAB	lab(17.06, 29.58, 8.64)
CIE-LCH	lch(17.06, 30.82, 16.29°)
OKLab	oklab(29.66% 0.0891 0.0215)
OKLCH	oklch(29.66% 0.092 13.6)
XYZ	xyz(3.8739, 2.3145, 1.5388)
Luminance	0.0231 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51131F #135145

analogous

#51133E #51131F #512613

triadic

#51131F #1F5113 #131F51

tetradic

#51131F #3E5113 #135145 #261351

square

#51131F #3E5113 #135145 #261351

split-complementary

#51131F #135126 #133E51

monochromatic

#190609 #1F070C #51131F #831F32 #B42A45

Accessibility & contrast

On white

14.36

#51131F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.46

#51131F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #51131F

14.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51131F	#FFFFFF	#000000	##FFFFFF
##51131F	1.00	14.36	1.46	14.36
#FFFFFF	14.36	1.00	21.00	1.00
#000000	1.46	21.00	1.00	21.00
##FFFFFF	14.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#23221F

Deuteranopia (green-blind)

#332F1D

Tritanopia (blue-blind)

#590518

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #51131f;
/* rgb */ color: rgb(81, 19, 31);
/* oklch */ color: oklch(29.7% 0.092 13.6);

Tailwind

colors: {
  custom: {
    50: '#86565a',
    500: '#51131f',
    950: '#000000',
  },
}

SCSS

$custom: #51131f;
$custom-light: #86565a;
$custom-dark: #000000;

JSON

{
  "hex": "#51131f",
  "rgb": {
    "r": 81,
    "g": 19,
    "b": 31
  },
  "hsl": {
    "h": 348.387,
    "s": 62,
    "l": 19.608
  },
  "oklch": {
    "l": 0.29657,
    "c": 0.0917,
    "h": 13.6
  },
  "luminance": 0.02314
}

Semantic roles & 50–950 ramp

primary

#51131F

secondary

#368A79

accent

#E5C643

background

#F8F5F5

surface

#F0E9E9

border

#CBC5C5

text

#0C0303

muted

#7D7878

Preview Lab

Preview with #51131F

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

Preview Lab → · Contrast checker → · Palette generator →