#51101C#51101C

#51101C is a dark, moderate red. Relative luminance 0.022; OKLCH L 29.2% C 0.095 H 15.1°. Best body text is #FFFFFF at 14.58:1 contrast (WCAG AA passes).

Color values

HEX	#51101C
RGB	rgb(81, 16, 28)
HSL	hsl(349, 67%, 19%)
HSV	hsv(349, 80%, 32%)
CMYK	cmyk(0%, 80.2%, 65.4%, 68.2%)
CIE-LAB	lab(16.52, 30.61, 10.08)
CIE-LCH	lch(16.52, 32.22, 18.23°)
OKLab	oklab(29.24% 0.0918 0.0247)
OKLCH	oklch(29.24% 0.095 15.1)
XYZ	xyz(3.7886, 2.2043, 1.3244)
Luminance	0.0220 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51101C #105145

analogous

#51103D #51101C #512510

triadic

#51101C #1C5110 #101C51

tetradic

#51101C #3D5110 #105145 #251051

square

#51101C #3D5110 #105145 #251051

split-complementary

#51101C #105125 #103D51

monochromatic

#1A0509 #1E060A #51101C #841A2E #B7243F

Accessibility & contrast

On white

14.58

#51101C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.44

#51101C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #51101C

14.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51101C	#FFFFFF	#000000	##FFFFFF
##51101C	1.00	14.58	1.44	14.58
#FFFFFF	14.58	1.00	21.00	1.00
#000000	1.44	21.00	1.00	21.00
##FFFFFF	14.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#22201C

Deuteranopia (green-blind)

#322E1A

Tritanopia (blue-blind)

#590015

Achromatopsia (no color)

#292929

Design tokens & code

CSS

--color: #51101c;
/* rgb */ color: rgb(81, 16, 28);
/* oklch */ color: oklch(29.2% 0.095 15.1);

Tailwind

colors: {
  custom: {
    50: '#875457',
    500: '#51101c',
    950: '#000000',
  },
}

SCSS

$custom: #51101c;
$custom-light: #875457;
$custom-dark: #000000;

JSON

{
  "hex": "#51101c",
  "rgb": {
    "r": 81,
    "g": 16,
    "b": 28
  },
  "hsl": {
    "h": 348.923,
    "s": 67.01,
    "l": 19.02
  },
  "oklch": {
    "l": 0.29237,
    "c": 0.09511,
    "h": 15.1
  },
  "luminance": 0.02204
}

Semantic roles & 50–950 ramp

primary

#51101C

secondary

#328B7A

accent

#EACA3E

background

#F8F5F5

surface

#F0E9E9

border

#CBC5C5

text

#0C0303

muted

#7D7878

Preview Lab

Preview with #51101C

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

Preview Lab → · Contrast checker → · Palette generator →