#511C17#511C17

#511C17 is a dark, moderate red. Relative luminance 0.026; OKLCH L 30.7% C 0.081 H 28.1°. Best body text is #FFFFFF at 13.74:1 contrast (WCAG AA passes).

Color values

HEX	#511C17
RGB	rgb(81, 28, 23)
HSL	hsl(5, 56%, 20%)
HSV	hsv(5, 72%, 32%)
CMYK	cmyk(0%, 65.4%, 71.6%, 68.2%)
CIE-LAB	lab(18.55, 24.47, 16.18)
CIE-LCH	lch(18.55, 29.33, 33.48°)
OKLab	oklab(30.72% 0.0713 0.0381)
OKLCH	oklch(30.72% 0.081 28.1)
XYZ	xyz(3.9636, 2.6422, 1.1117)
Luminance	0.0264 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511C17 #174C51

analogous

#51172F #511C17 #513917

triadic

#511C17 #17511C #1C1751

tetradic

#511C17 #2F5117 #174C51 #391751

square

#511C17 #2F5117 #174C51 #391751

split-complementary

#511C17 #175139 #172F51

monochromatic

#180807 #210C09 #511C17 #812C25 #B03D32

Accessibility & contrast

On white

13.74

#511C17 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.53

#511C17 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511C17

13.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511C17	#FFFFFF	#000000	##FFFFFF
##511C17	1.00	13.74	1.53	13.74
#FFFFFF	13.74	1.00	21.00	1.00
#000000	1.53	21.00	1.00	21.00
##FFFFFF	13.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A2616

Deuteranopia (green-blind)

#373116

Tritanopia (blue-blind)

#59111B

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #511c17;
/* rgb */ color: rgb(81, 28, 23);
/* oklch */ color: oklch(30.7% 0.081 28.1);

Tailwind

colors: {
  custom: {
    50: '#865b54',
    500: '#511c17',
    950: '#000000',
  },
}

SCSS

$custom: #511c17;
$custom-light: #865b54;
$custom-dark: #000000;

JSON

{
  "hex": "#511c17",
  "rgb": {
    "r": 81,
    "g": 28,
    "b": 23
  },
  "hsl": {
    "h": 5.172,
    "s": 55.769,
    "l": 20.392
  },
  "oklch": {
    "l": 0.30719,
    "c": 0.08081,
    "h": 28.1
  },
  "luminance": 0.02642
}

Semantic roles & 50–950 ramp

primary

#511C17

secondary

#3C8288

accent

#D2DF49

background

#F8F5F4

surface

#F0E9E7

border

#CBC5C3

text

#0C0402

muted

#7D7978

Preview Lab

Preview with #511C17

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

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