#511D17#511D17

#511D17 is a dark, moderate red. Relative luminance 0.027; OKLCH L 30.9% C 0.080 H 29.0°. Best body text is #FFFFFF at 13.65:1 contrast (WCAG AA passes).

Color values

HEX	#511D17
RGB	rgb(81, 29, 23)
HSL	hsl(6, 56%, 20%)
HSV	hsv(6, 72%, 32%)
CMYK	cmyk(0%, 64.2%, 71.6%, 68.2%)
CIE-LAB	lab(18.76, 23.92, 16.44)
CIE-LCH	lch(18.76, 29.02, 34.50°)
OKLab	oklab(30.88% 0.0696 0.0386)
OKLCH	oklch(30.88% 0.08 29)
XYZ	xyz(3.9877, 2.6904, 1.1198)
Luminance	0.0269 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511D17 #174B51

analogous

#51172E #511D17 #513A17

triadic

#511D17 #17511D #1D1751

tetradic

#511D17 #2E5117 #174B51 #3A1751

square

#511D17 #2E5117 #174B51 #3A1751

split-complementary

#511D17 #17513A #172E51

monochromatic

#180907 #210C09 #511D17 #812E25 #B03F32

Accessibility & contrast

On white

13.65

#511D17 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.54

#511D17 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511D17

13.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511D17	#FFFFFF	#000000	##FFFFFF
##511D17	1.00	13.65	1.54	13.65
#FFFFFF	13.65	1.00	21.00	1.00
#000000	1.54	21.00	1.00	21.00
##FFFFFF	13.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B2716

Deuteranopia (green-blind)

#373216

Tritanopia (blue-blind)

#59121C

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #511d17;
/* rgb */ color: rgb(81, 29, 23);
/* oklch */ color: oklch(30.9% 0.080 29.0);

Tailwind

colors: {
  custom: {
    50: '#865b54',
    500: '#511d17',
    950: '#000000',
  },
}

SCSS

$custom: #511d17;
$custom-light: #865b54;
$custom-dark: #000000;

JSON

{
  "hex": "#511d17",
  "rgb": {
    "r": 81,
    "g": 29,
    "b": 23
  },
  "hsl": {
    "h": 6.207,
    "s": 55.769,
    "l": 20.392
  },
  "oklch": {
    "l": 0.30877,
    "c": 0.07958,
    "h": 29
  },
  "luminance": 0.0269
}

Semantic roles & 50–950 ramp

primary

#511D17

secondary

#3C8088

accent

#D0DF49

background

#F8F5F4

surface

#F0E9E7

border

#CBC5C3

text

#0C0402

muted

#7D7978

Preview Lab

Preview with #511D17

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

Preview Lab → · Contrast checker → · Palette generator →