#511D2A#511D2A

#511D2A is a dark, moderate red. Relative luminance 0.028; OKLCH L 31.4% C 0.079 H 7.3°. Best body text is #FFFFFF at 13.47:1 contrast (WCAG AA passes).

Color values

HEX	#511D2A
RGB	rgb(81, 29, 42)
HSL	hsl(345, 47%, 22%)
HSV	hsv(345, 64%, 32%)
CMYK	cmyk(0%, 64.2%, 48.1%, 68.2%)
CIE-LAB	lab(19.21, 25.73, 3.81)
CIE-LCH	lch(19.21, 26.01, 8.43°)
OKLab	oklab(31.36% 0.0783 0.01)
OKLCH	oklch(31.36% 0.079 7.3)
XYZ	xyz(4.2509, 2.7957, 2.5058)
Luminance	0.0279 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511D2A #1D5144

analogous

#511D44 #511D2A #512A1D

triadic

#511D2A #2A511D #1D2A51

tetradic

#511D2A #44511D #1D5144 #2A1D51

square

#511D2A #44511D #1D5144 #2A1D51

split-complementary

#511D2A #1D512A #1D4451

monochromatic

#17080C #240D13 #511D2A #7E2D41 #AB3D59

Accessibility & contrast

On white

13.47

#511D2A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.56

#511D2A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511D2A

13.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511D2A	#FFFFFF	#000000	##FFFFFF
##511D2A	1.00	13.47	1.56	13.47
#FFFFFF	13.47	1.00	21.00	1.00
#000000	1.56	21.00	1.00	21.00
##FFFFFF	13.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#27282A

Deuteranopia (green-blind)

#353229

Tritanopia (blue-blind)

#581722

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #511d2a;
/* rgb */ color: rgb(81, 29, 42);
/* oklch */ color: oklch(31.4% 0.079 7.3);

Tailwind

colors: {
  custom: {
    50: '#855c63',
    500: '#511d2a',
    950: '#000000',
  },
}

SCSS

$custom: #511d2a;
$custom-light: #855c63;
$custom-dark: #000000;

JSON

{
  "hex": "#511d2a",
  "rgb": {
    "r": 81,
    "g": 29,
    "b": 42
  },
  "hsl": {
    "h": 345,
    "s": 47.273,
    "l": 21.569
  },
  "oklch": {
    "l": 0.31359,
    "c": 0.07889,
    "h": 7.3
  },
  "luminance": 0.02795
}

Semantic roles & 50–950 ramp

primary

#511D2A

secondary

#448676

accent

#D7B551

background

#F8F5F5

surface

#F0E9EA

border

#CBC5C6

text

#0B0405

muted

#7C7979

Preview Lab

Preview with #511D2A

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

Preview Lab → · Contrast checker → · Palette generator →