#511810#511810

#511810 is a dark, moderate red. Relative luminance 0.024; OKLCH L 30.0% C 0.087 H 30.8°. Best body text is #FFFFFF at 14.11:1 contrast (WCAG AA passes).

Color values

HEX	#511810
RGB	rgb(81, 24, 16)
HSL	hsl(7, 67%, 19%)
HSV	hsv(7, 80%, 32%)
CMYK	cmyk(0%, 70.4%, 80.2%, 68.2%)
CIE-LAB	lab(17.65, 26.14, 19.55)
CIE-LCH	lch(17.65, 32.65, 36.79°)
OKLab	oklab(30.01% 0.0749 0.0446)
OKLCH	oklch(30.01% 0.087 30.8)
XYZ	xyz(3.8139, 2.4406, 0.7604)
Luminance	0.0244 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511810 #104951

analogous

#511029 #511810 #513910

triadic

#511810 #105118 #181051

tetradic

#511810 #295110 #104951 #391051

square

#511810 #295110 #104951 #391051

split-complementary

#511810 #105139 #102951

monochromatic

#1A0805 #1E0906 #511810 #84271A #B73624

Accessibility & contrast

On white

14.11

#511810 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.49

#511810 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511810

14.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511810	#FFFFFF	#000000	##FFFFFF
##511810	1.00	14.11	1.49	14.11
#FFFFFF	14.11	1.00	21.00	1.00
#000000	1.49	21.00	1.00	21.00
##FFFFFF	14.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#28230F

Deuteranopia (green-blind)

#36300E

Tritanopia (blue-blind)

#5A0916

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #511810;
/* rgb */ color: rgb(81, 24, 16);
/* oklch */ color: oklch(30.0% 0.087 30.8);

Tailwind

colors: {
  custom: {
    50: '#87584e',
    500: '#511810',
    950: '#000000',
  },
}

SCSS

$custom: #511810;
$custom-light: #87584e;
$custom-dark: #000000;

JSON

{
  "hex": "#511810",
  "rgb": {
    "r": 81,
    "g": 24,
    "b": 16
  },
  "hsl": {
    "h": 7.385,
    "s": 67.01,
    "l": 19.02
  },
  "oklch": {
    "l": 0.30005,
    "c": 0.08719,
    "h": 30.8
  },
  "luminance": 0.0244
}

Semantic roles & 50–950 ramp

primary

#511810

secondary

#32808B

accent

#D5EA3E

background

#F8F5F4

surface

#F0E9E7

border

#CBC5C3

text

#0C0301

muted

#7D7877

Preview Lab

Preview with #511810

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

Preview Lab → · Contrast checker → · Palette generator →