#511C22#511C22

#511C22 is a dark, moderate red. Relative luminance 0.027; OKLCH L 31.0% C 0.080 H 16.2°. Best body text is #FFFFFF at 13.65:1 contrast (WCAG AA passes).

Color values

HEX	#511C22
RGB	rgb(81, 28, 34)
HSL	hsl(353, 49%, 21%)
HSV	hsv(353, 65%, 32%)
CMYK	cmyk(0%, 65.4%, 58%, 68.2%)
CIE-LAB	lab(18.78, 25.40, 8.85)
CIE-LCH	lch(18.78, 26.90, 19.22°)
OKLab	oklab(30.97% 0.0763 0.0222)
OKLCH	oklch(30.97% 0.08 16.2)
XYZ	xyz(4.0977, 2.6958, 1.8176)
Luminance	0.0270 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511C22 #1C514B

analogous

#511C3D #511C22 #51311C

triadic

#511C22 #22511C #1C2251

tetradic

#511C22 #3D511C #1C514B #311C51

square

#511C22 #3D511C #1C514B #311C51

split-complementary

#511C22 #1C5131 #1C3D51

monochromatic

#17080A #240C0F #511C22 #7E2C35 #AC3B48

Accessibility & contrast

On white

13.65

#511C22 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.54

#511C22 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511C22

13.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511C22	#FFFFFF	#000000	##FFFFFF
##511C22	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)

#282722

Deuteranopia (green-blind)

#363221

Tritanopia (blue-blind)

#59131E

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #511c22;
/* rgb */ color: rgb(81, 28, 34);
/* oklch */ color: oklch(31.0% 0.080 16.2);

Tailwind

colors: {
  custom: {
    50: '#855b5c',
    500: '#511c22',
    950: '#000000',
  },
}

SCSS

$custom: #511c22;
$custom-light: #855b5c;
$custom-dark: #000000;

JSON

{
  "hex": "#511c22",
  "rgb": {
    "r": 81,
    "g": 28,
    "b": 34
  },
  "hsl": {
    "h": 353.208,
    "s": 48.624,
    "l": 21.373
  },
  "oklch": {
    "l": 0.30969,
    "c": 0.0795,
    "h": 16.2
  },
  "luminance": 0.02695
}

Semantic roles & 50–950 ramp

primary

#511C22

secondary

#42877F

accent

#D8C950

background

#F8F5F5

surface

#F0E9E9

border

#CBC5C5

text

#0C0404

muted

#7D7979

Preview Lab

Preview with #511C22

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

Preview Lab → · Contrast checker → · Palette generator →