#511A11#511A11

#511A11 is a dark, moderate red. Relative luminance 0.025; OKLCH L 30.3% C 0.085 H 31.6°. Best body text is #FFFFFF at 13.95:1 contrast (WCAG AA passes).

Color values

HEX	#511A11
RGB	rgb(81, 26, 17)
HSL	hsl(8, 65%, 19%)
HSV	hsv(8, 79%, 32%)
CMYK	cmyk(0%, 67.9%, 79%, 68.2%)
CIE-LAB	lab(18.05, 25.16, 19.46)
CIE-LCH	lch(18.05, 31.81, 37.72°)
OKLab	oklab(30.31% 0.0721 0.0444)
OKLCH	oklch(30.31% 0.085 31.6)
XYZ	xyz(3.8643, 2.5291, 0.8149)
Luminance	0.0253 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511A11 #114851

analogous

#511128 #511A11 #513A11

triadic

#511A11 #11511A #1A1151

tetradic

#511A11 #285111 #114851 #3A1151

square

#511A11 #285111 #114851 #3A1151

split-complementary

#511A11 #11513A #112851

monochromatic

#190805 #1E0A06 #511A11 #842A1C #B63A26

Accessibility & contrast

On white

13.95

#511A11 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.51

#511A11 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511A11

13.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511A11	#FFFFFF	#000000	##FFFFFF
##511A11	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)

#292510

Deuteranopia (green-blind)

#37310F

Tritanopia (blue-blind)

#5A0D18

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #511a11;
/* rgb */ color: rgb(81, 26, 17);
/* oklch */ color: oklch(30.3% 0.085 31.6);

Tailwind

colors: {
  custom: {
    50: '#87594f',
    500: '#511a11',
    950: '#000000',
  },
}

SCSS

$custom: #511a11;
$custom-light: #87594f;
$custom-dark: #000000;

JSON

{
  "hex": "#511a11",
  "rgb": {
    "r": 81,
    "g": 26,
    "b": 17
  },
  "hsl": {
    "h": 8.438,
    "s": 65.306,
    "l": 19.216
  },
  "oklch": {
    "l": 0.30312,
    "c": 0.08467,
    "h": 31.6
  },
  "luminance": 0.02529
}

Semantic roles & 50–950 ramp

primary

#511A11

secondary

#347E8A

accent

#D1E840

background

#F8F5F4

surface

#F0E9E7

border

#CBC5C3

text

#0C0402

muted

#7D7978

Preview Lab

Preview with #511A11

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

Preview Lab → · Contrast checker → · Palette generator →