#51131E#51131E

#51131E is a dark, moderate red. Relative luminance 0.023; OKLCH L 29.6% C 0.092 H 14.6°. Best body text is #FFFFFF at 14.37:1 contrast (WCAG AA passes).

Color values

HEX	#51131E
RGB	rgb(81, 19, 30)
HSL	hsl(349, 62%, 20%)
HSV	hsv(349, 77%, 32%)
CMYK	cmyk(0%, 76.5%, 63%, 68.2%)
CIE-LAB	lab(17.03, 29.49, 9.33)
CIE-LCH	lch(17.03, 30.93, 17.55°)
OKLab	oklab(29.63% 0.0887 0.0231)
OKLCH	oklch(29.63% 0.092 14.6)
XYZ	xyz(3.8609, 2.3093, 1.4705)
Luminance	0.0231 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51131E #135146

analogous

#51133D #51131E #512713

triadic

#51131E #1E5113 #131E51

tetradic

#51131E #3D5113 #135146 #271351

square

#51131E #3D5113 #135146 #271351

split-complementary

#51131E #135127 #133D51

monochromatic

#190609 #1F070C #51131E #831F30 #B42A43

Accessibility & contrast

On white

14.37

#51131E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.46

#51131E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #51131E

14.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51131E	#FFFFFF	#000000	##FFFFFF
##51131E	1.00	14.37	1.46	14.37
#FFFFFF	14.37	1.00	21.00	1.00
#000000	1.46	21.00	1.00	21.00
##FFFFFF	14.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#23221E

Deuteranopia (green-blind)

#332F1C

Tritanopia (blue-blind)

#590517

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #51131e;
/* rgb */ color: rgb(81, 19, 30);
/* oklch */ color: oklch(29.6% 0.092 14.6);

Tailwind

colors: {
  custom: {
    50: '#865659',
    500: '#51131e',
    950: '#000000',
  },
}

SCSS

$custom: #51131e;
$custom-light: #865659;
$custom-dark: #000000;

JSON

{
  "hex": "#51131e",
  "rgb": {
    "r": 81,
    "g": 19,
    "b": 30
  },
  "hsl": {
    "h": 349.355,
    "s": 62,
    "l": 19.608
  },
  "oklch": {
    "l": 0.2963,
    "c": 0.09163,
    "h": 14.6
  },
  "luminance": 0.02309
}

Semantic roles & 50–950 ramp

primary

#51131E

secondary

#368A7B

accent

#E5C843

background

#F8F5F5

surface

#F0E9E9

border

#CBC5C5

text

#0C0303

muted

#7D7878

Preview Lab

Preview with #51131E

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

Preview Lab → · Contrast checker → · Palette generator →