#511E18#511E18

#511E18 is a dark, moderate red. Relative luminance 0.027; OKLCH L 31.1% C 0.078 H 29.0°. Best body text is #FFFFFF at 13.56:1 contrast (WCAG AA passes).

Color values

HEX	#511E18
RGB	rgb(81, 30, 24)
HSL	hsl(6, 54%, 21%)
HSV	hsv(6, 70%, 32%)
CMYK	cmyk(0%, 63%, 70.4%, 68.2%)
CIE-LAB	lab(18.99, 23.43, 16.04)
CIE-LCH	lch(18.99, 28.40, 34.40°)
OKLab	oklab(31.06% 0.0683 0.0379)
OKLCH	oklch(31.06% 0.078 29)
XYZ	xyz(4.0229, 2.7443, 1.1818)
Luminance	0.0274 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511E18 #184B51

analogous

#51182E #511E18 #513A18

triadic

#511E18 #18511E #1E1851

tetradic

#511E18 #2E5118 #184B51 #3A1851

square

#511E18 #2E5118 #184B51 #3A1851

split-complementary

#511E18 #18513A #182E51

monochromatic

#180907 #220D0A #511E18 #802F26 #AF4134

Accessibility & contrast

On white

13.56

#511E18 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.55

#511E18 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511E18

13.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511E18	#FFFFFF	#000000	##FFFFFF
##511E18	1.00	13.56	1.55	13.56
#FFFFFF	13.56	1.00	21.00	1.00
#000000	1.55	21.00	1.00	21.00
##FFFFFF	13.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B2717

Deuteranopia (green-blind)

#383217

Tritanopia (blue-blind)

#59141D

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #511e18;
/* rgb */ color: rgb(81, 30, 24);
/* oklch */ color: oklch(31.1% 0.078 29.0);

Tailwind

colors: {
  custom: {
    50: '#865c54',
    500: '#511e18',
    950: '#000000',
  },
}

SCSS

$custom: #511e18;
$custom-light: #865c54;
$custom-dark: #000000;

JSON

{
  "hex": "#511e18",
  "rgb": {
    "r": 81,
    "g": 30,
    "b": 24
  },
  "hsl": {
    "h": 6.316,
    "s": 54.286,
    "l": 20.588
  },
  "oklch": {
    "l": 0.31057,
    "c": 0.07809,
    "h": 29
  },
  "luminance": 0.02744
}

Semantic roles & 50–950 ramp

primary

#511E18

secondary

#3D8088

accent

#CEDE4A

background

#F8F5F4

surface

#F0E9E7

border

#CBC5C3

text

#0C0402

muted

#7D7978

Preview Lab

Preview with #511E18

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

Preview Lab → · Contrast checker → · Palette generator →