#511B12#511B12

#511B12 is a dark, moderate red. Relative luminance 0.026; OKLCH L 30.5% C 0.083 H 31.7°. Best body text is #FFFFFF at 13.86:1 contrast (WCAG AA passes).

Color values

HEX	#511B12
RGB	rgb(81, 27, 18)
HSL	hsl(9, 64%, 19%)
HSV	hsv(9, 78%, 32%)
CMYK	cmyk(0%, 66.7%, 77.8%, 68.2%)
CIE-LAB	lab(18.27, 24.69, 19.13)
CIE-LCH	lch(18.27, 31.23, 37.77°)
OKLab	oklab(30.48% 0.0708 0.0437)
OKLCH	oklch(30.48% 0.083 31.7)
XYZ	xyz(3.8949, 2.5774, 0.8645)
Luminance	0.0258 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511B12 #124851

analogous

#511229 #511B12 #513B12

triadic

#511B12 #12511B #1B1251

tetradic

#511B12 #295112 #124851 #3B1251

square

#511B12 #295112 #124851 #3B1251

split-complementary

#511B12 #12513B #122951

monochromatic

#190806 #1F0A07 #511B12 #832C1D #B53C28

Accessibility & contrast

On white

13.86

#511B12 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.52

#511B12 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511B12

13.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511B12	#FFFFFF	#000000	##FFFFFF
##511B12	1.00	13.86	1.52	13.86
#FFFFFF	13.86	1.00	21.00	1.00
#000000	1.52	21.00	1.00	21.00
##FFFFFF	13.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A2511

Deuteranopia (green-blind)

#373110

Tritanopia (blue-blind)

#5A0F19

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #511b12;
/* rgb */ color: rgb(81, 27, 18);
/* oklch */ color: oklch(30.5% 0.083 31.7);

Tailwind

colors: {
  custom: {
    50: '#875a50',
    500: '#511b12',
    950: '#000000',
  },
}

SCSS

$custom: #511b12;
$custom-light: #875a50;
$custom-dark: #000000;

JSON

{
  "hex": "#511b12",
  "rgb": {
    "r": 81,
    "g": 27,
    "b": 18
  },
  "hsl": {
    "h": 8.571,
    "s": 63.636,
    "l": 19.412
  },
  "oklch": {
    "l": 0.30479,
    "c": 0.08326,
    "h": 31.7
  },
  "luminance": 0.02577
}

Semantic roles & 50–950 ramp

primary

#511B12

secondary

#357E8A

accent

#CFE741

background

#F8F5F4

surface

#F0E9E7

border

#CBC5C3

text

#0C0402

muted

#7D7978

Preview Lab

Preview with #511B12

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

Preview Lab → · Contrast checker → · Palette generator →