#511618#511618

#511618 is a dark, moderate red. Relative luminance 0.024; OKLCH L 29.9% C 0.088 H 22.3°. Best body text is #FFFFFF at 14.21:1 contrast (WCAG AA passes).

Color values

HEX	#511618
RGB	rgb(81, 22, 24)
HSL	hsl(358, 57%, 20%)
HSV	hsv(358, 73%, 32%)
CMYK	cmyk(0%, 72.8%, 70.4%, 68.2%)
CIE-LAB	lab(17.41, 27.63, 14.08)
CIE-LCH	lch(17.41, 31.01, 26.99°)
OKLab	oklab(29.87% 0.0815 0.0335)
OKLCH	oklch(29.87% 0.088 22.3)
XYZ	xyz(3.8455, 2.3896, 1.1227)
Luminance	0.0239 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511618 #16514F

analogous

#511635 #511618 #513116

triadic

#511618 #185116 #161851

tetradic

#511618 #355116 #16514F #311651

square

#511618 #355116 #16514F #311651

split-complementary

#511618 #165131 #163551

monochromatic

#180707 #21090A #511618 #812326 #B13035

Accessibility & contrast

On white

14.21

#511618 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.48

#511618 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511618

14.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511618	#FFFFFF	#000000	##FFFFFF
##511618	1.00	14.21	1.48	14.21
#FFFFFF	14.21	1.00	21.00	1.00
#000000	1.48	21.00	1.00	21.00
##FFFFFF	14.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#262318

Deuteranopia (green-blind)

#352F16

Tritanopia (blue-blind)

#590817

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #511618;
/* rgb */ color: rgb(81, 22, 24);
/* oklch */ color: oklch(29.9% 0.088 22.3);

Tailwind

colors: {
  custom: {
    50: '#875754',
    500: '#511618',
    950: '#000000',
  },
}

SCSS

$custom: #511618;
$custom-light: #875754;
$custom-dark: #000000;

JSON

{
  "hex": "#511618",
  "rgb": {
    "r": 81,
    "g": 22,
    "b": 24
  },
  "hsl": {
    "h": 357.966,
    "s": 57.282,
    "l": 20.196
  },
  "oklch": {
    "l": 0.2987,
    "c": 0.0881,
    "h": 22.3
  },
  "luminance": 0.02389
}

Semantic roles & 50–950 ramp

primary

#511618

secondary

#3A8886

accent

#E1DB47

background

#F8F5F4

surface

#F0E9E7

border

#CBC5C3

text

#0C0302

muted

#7D7878

Preview Lab

Preview with #511618

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

Preview Lab → · Contrast checker → · Palette generator →