#511510#511510

#511510 is a dark, moderate red. Relative luminance 0.023; OKLCH L 29.6% C 0.091 H 28.5°. Best body text is #FFFFFF at 14.34:1 contrast (WCAG AA passes).

Color values

HEX	#511510
RGB	rgb(81, 21, 16)
HSL	hsl(5, 67%, 19%)
HSV	hsv(5, 80%, 32%)
CMYK	cmyk(0%, 74.1%, 80.2%, 68.2%)
CIE-LAB	lab(17.10, 27.62, 18.89)
CIE-LCH	lch(17.10, 33.46, 34.37°)
OKLab	oklab(29.6% 0.0796 0.0433)
OKLCH	oklch(29.6% 0.091 28.5)
XYZ	xyz(3.7554, 2.3236, 0.7409)
Luminance	0.0232 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511510 #104C51

analogous

#51102C #511510 #513610

triadic

#511510 #105115 #151051

tetradic

#511510 #2C5110 #104C51 #361051

square

#511510 #2C5110 #104C51 #361051

split-complementary

#511510 #105136 #102C51

monochromatic

#1A0705 #1E0806 #511510 #84221A #B72F24

Accessibility & contrast

On white

14.34

#511510 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.46

#511510 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511510

14.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511510	#FFFFFF	#000000	##FFFFFF
##511510	1.00	14.34	1.46	14.34
#FFFFFF	14.34	1.00	21.00	1.00
#000000	1.46	21.00	1.00	21.00
##FFFFFF	14.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#26220F

Deuteranopia (green-blind)

#352F0E

Tritanopia (blue-blind)

#5A0414

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #511510;
/* rgb */ color: rgb(81, 21, 16);
/* oklch */ color: oklch(29.6% 0.091 28.5);

Tailwind

colors: {
  custom: {
    50: '#88564e',
    500: '#511510',
    950: '#000000',
  },
}

SCSS

$custom: #511510;
$custom-light: #88564e;
$custom-dark: #000000;

JSON

{
  "hex": "#511510",
  "rgb": {
    "r": 81,
    "g": 21,
    "b": 16
  },
  "hsl": {
    "h": 4.615,
    "s": 67.01,
    "l": 19.02
  },
  "oklch": {
    "l": 0.29595,
    "c": 0.09055,
    "h": 28.5
  },
  "luminance": 0.02323
}

Semantic roles & 50–950 ramp

primary

#511510

secondary

#32848B

accent

#DDEA3E

background

#F8F5F4

surface

#F0E9E7

border

#CBC5C3

text

#0C0301

muted

#7D7877

Preview Lab

Preview with #511510

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

Preview Lab → · Contrast checker → · Palette generator →