#511011#511011

#511011 is a dark, moderate red. Relative luminance 0.022; OKLCH L 29.0% C 0.096 H 24.7°. Best body text is #FFFFFF at 14.66:1 contrast (WCAG AA passes).

Color values

HEX	#511011
RGB	rgb(81, 16, 17)
HSL	hsl(359, 67%, 19%)
HSV	hsv(359, 80%, 32%)
CMYK	cmyk(0%, 80.2%, 79%, 68.2%)
CIE-LAB	lab(16.31, 29.89, 17.34)
CIE-LCH	lch(16.31, 34.55, 30.13°)
OKLab	oklab(29.01% 0.0869 0.0401)
OKLCH	oklch(29.01% 0.096 24.7)
XYZ	xyz(3.6802, 2.1609, 0.7535)
Luminance	0.0216 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511011 #105150

analogous

#511032 #511011 #513010

triadic

#511011 #115110 #101151

tetradic

#511011 #325110 #105150 #301051

square

#511011 #325110 #105150 #301051

split-complementary

#511011 #105130 #103251

monochromatic

#1A0505 #1E0606 #511011 #841A1C #B72426

Accessibility & contrast

On white

14.66

#511011 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.43

#511011 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511011

14.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511011	#FFFFFF	#000000	##FFFFFF
##511011	1.00	14.66	1.43	14.66
#FFFFFF	14.66	1.00	21.00	1.00
#000000	1.43	21.00	1.00	21.00
##FFFFFF	14.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#231F10

Deuteranopia (green-blind)

#332E0F

Tritanopia (blue-blind)

#5A0011

Achromatopsia (no color)

#282828

Design tokens & code

CSS

--color: #511011;
/* rgb */ color: rgb(81, 16, 17);
/* oklch */ color: oklch(29.0% 0.096 24.7);

Tailwind

colors: {
  custom: {
    50: '#88544f',
    500: '#511011',
    950: '#000000',
  },
}

SCSS

$custom: #511011;
$custom-light: #88544f;
$custom-dark: #000000;

JSON

{
  "hex": "#511011",
  "rgb": {
    "r": 81,
    "g": 16,
    "b": 17
  },
  "hsl": {
    "h": 359.077,
    "s": 67.01,
    "l": 19.02
  },
  "oklch": {
    "l": 0.29008,
    "c": 0.09572,
    "h": 24.7
  },
  "luminance": 0.0216
}

Semantic roles & 50–950 ramp

primary

#511011

secondary

#328B89

accent

#EAE73E

background

#F8F5F4

surface

#F0E9E7

border

#CBC5C3

text

#0C0301

muted

#7D7877

Preview Lab

Preview with #511011

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

Preview Lab → · Contrast checker → · Palette generator →