#511A10#511A10

#511A10 is a dark, moderate red. Relative luminance 0.025; OKLCH L 30.3% C 0.085 H 32.4°. Best body text is #FFFFFF at 13.95:1 contrast (WCAG AA passes).

Color values

HEX	#511A10
RGB	rgb(81, 26, 16)
HSL	hsl(9, 67%, 19%)
HSV	hsv(9, 80%, 32%)
CMYK	cmyk(0%, 67.9%, 80.2%, 68.2%)
CIE-LAB	lab(18.04, 25.11, 20.02)
CIE-LCH	lch(18.04, 32.11, 38.56°)
OKLab	oklab(30.3% 0.0717 0.0455)
OKLCH	oklch(30.3% 0.085 32.4)
XYZ	xyz(3.8567, 2.5261, 0.7746)
Luminance	0.0253 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511A10 #104751

analogous

#511027 #511A10 #513B10

triadic

#511A10 #10511A #1A1051

tetradic

#511A10 #275110 #104751 #3B1051

square

#511A10 #275110 #104751 #3B1051

split-complementary

#511A10 #10513B #102751

monochromatic

#1A0805 #1E0A06 #511A10 #842A1A #B73B24

Accessibility & contrast

On white

13.95

#511A10 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.51

#511A10 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511A10

13.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511A10	#FFFFFF	#000000	##FFFFFF
##511A10	1.00	13.95	1.51	13.95
#FFFFFF	13.95	1.00	21.00	1.00
#000000	1.51	21.00	1.00	21.00
##FFFFFF	13.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#29240F

Deuteranopia (green-blind)

#37310E

Tritanopia (blue-blind)

#5A0D18

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #511a10;
/* rgb */ color: rgb(81, 26, 16);
/* oklch */ color: oklch(30.3% 0.085 32.4);

Tailwind

colors: {
  custom: {
    50: '#87594e',
    500: '#511a10',
    950: '#000000',
  },
}

SCSS

$custom: #511a10;
$custom-light: #87594e;
$custom-dark: #000000;

JSON

{
  "hex": "#511a10",
  "rgb": {
    "r": 81,
    "g": 26,
    "b": 16
  },
  "hsl": {
    "h": 9.231,
    "s": 67.01,
    "l": 19.02
  },
  "oklch": {
    "l": 0.30297,
    "c": 0.08493,
    "h": 32.4
  },
  "luminance": 0.02526
}

Semantic roles & 50–950 ramp

primary

#511A10

secondary

#327D8B

accent

#CFEA3E

background

#F8F5F4

surface

#F0E9E7

border

#CBC5C3

text

#0C0401

muted

#7D7977

Preview Lab

Preview with #511A10

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

Preview Lab → · Contrast checker → · Palette generator →