#511D20#511D20

#511D20 is a dark, moderate red. Relative luminance 0.027; OKLCH L 31.1% C 0.078 H 19.4°. Best body text is #FFFFFF at 13.58:1 contrast (WCAG AA passes).

Color values

HEX	#511D20
RGB	rgb(81, 29, 32)
HSL	hsl(357, 47%, 22%)
HSV	hsv(357, 64%, 32%)
CMYK	cmyk(0%, 64.2%, 60.5%, 68.2%)
CIE-LAB	lab(18.94, 24.66, 10.47)
CIE-LCH	lch(18.94, 26.79, 23.00°)
OKLab	oklab(31.07% 0.0737 0.0259)
OKLCH	oklch(31.07% 0.078 19.4)
XYZ	xyz(4.0938, 2.7328, 1.6781)
Luminance	0.0273 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511D20 #1D514E

analogous

#511D3A #511D20 #51341D

triadic

#511D20 #20511D #1D2051

tetradic

#511D20 #3A511D #1D514E #341D51

square

#511D20 #3A511D #1D514E #341D51

split-complementary

#511D20 #1D5134 #1D3A51

monochromatic

#170809 #240D0E #511D20 #7E2D32 #AB3D44

Accessibility & contrast

On white

13.58

#511D20 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.55

#511D20 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511D20

13.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511D20	#FFFFFF	#000000	##FFFFFF
##511D20	1.00	13.58	1.55	13.58
#FFFFFF	13.58	1.00	21.00	1.00
#000000	1.55	21.00	1.00	21.00
##FFFFFF	13.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#292720

Deuteranopia (green-blind)

#36321F

Tritanopia (blue-blind)

#59141E

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #511d20;
/* rgb */ color: rgb(81, 29, 32);
/* oklch */ color: oklch(31.1% 0.078 19.4);

Tailwind

colors: {
  custom: {
    50: '#865b5b',
    500: '#511d20',
    950: '#000000',
  },
}

SCSS

$custom: #511d20;
$custom-light: #865b5b;
$custom-dark: #000000;

JSON

{
  "hex": "#511d20",
  "rgb": {
    "r": 81,
    "g": 29,
    "b": 32
  },
  "hsl": {
    "h": 356.538,
    "s": 47.273,
    "l": 21.569
  },
  "oklch": {
    "l": 0.31073,
    "c": 0.07812,
    "h": 19.4
  },
  "luminance": 0.02732
}

Semantic roles & 50–950 ramp

primary

#511D20

secondary

#448682

accent

#D7CF51

background

#F8F5F5

surface

#F0E9E9

border

#CBC5C5

text

#0C0404

muted

#7D7979

Preview Lab

Preview with #511D20

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

Preview Lab → · Contrast checker → · Palette generator →