#511D16#511D16

#511D16 is a dark, moderate red. Relative luminance 0.027; OKLCH L 30.9% C 0.080 H 30.0°. Best body text is #FFFFFF at 13.66:1 contrast (WCAG AA passes).

Color values

HEX	#511D16
RGB	rgb(81, 29, 22)
HSL	hsl(7, 57%, 20%)
HSV	hsv(7, 73%, 32%)
CMYK	cmyk(0%, 64.2%, 72.8%, 68.2%)
CIE-LAB	lab(18.74, 23.85, 17.09)
CIE-LCH	lch(18.74, 29.34, 35.62°)
OKLab	oklab(30.86% 0.0691 0.0399)
OKLCH	oklch(30.86% 0.08 30)
XYZ	xyz(3.9779, 2.6865, 1.0680)
Luminance	0.0269 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511D16 #164A51

analogous

#51162C #511D16 #513B16

triadic

#511D16 #16511D #1D1651

tetradic

#511D16 #2C5116 #164A51 #3B1651

square

#511D16 #2C5116 #164A51 #3B1651

split-complementary

#511D16 #16513B #162C51

monochromatic

#180907 #210C09 #511D16 #812E23 #B13F30

Accessibility & contrast

On white

13.66

#511D16 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.54

#511D16 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511D16

13.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511D16	#FFFFFF	#000000	##FFFFFF
##511D16	1.00	13.66	1.54	13.66
#FFFFFF	13.66	1.00	21.00	1.00
#000000	1.54	21.00	1.00	21.00
##FFFFFF	13.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B2715

Deuteranopia (green-blind)

#383215

Tritanopia (blue-blind)

#59121C

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #511d16;
/* rgb */ color: rgb(81, 29, 22);
/* oklch */ color: oklch(30.9% 0.080 30.0);

Tailwind

colors: {
  custom: {
    50: '#865b53',
    500: '#511d16',
    950: '#000000',
  },
}

SCSS

$custom: #511d16;
$custom-light: #865b53;
$custom-dark: #000000;

JSON

{
  "hex": "#511d16",
  "rgb": {
    "r": 81,
    "g": 29,
    "b": 22
  },
  "hsl": {
    "h": 7.119,
    "s": 57.282,
    "l": 20.196
  },
  "oklch": {
    "l": 0.30859,
    "c": 0.07983,
    "h": 30
  },
  "luminance": 0.02686
}

Semantic roles & 50–950 ramp

primary

#511D16

secondary

#3A7F88

accent

#CEE147

background

#F8F5F4

surface

#F0E9E7

border

#CBC5C3

text

#0C0402

muted

#7D7978

Preview Lab

Preview with #511D16

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

Preview Lab → · Contrast checker → · Palette generator →