#511D28#511D28

#511D28 is a dark, moderate red. Relative luminance 0.028; OKLCH L 31.3% C 0.079 H 9.8°. Best body text is #FFFFFF at 13.49:1 contrast (WCAG AA passes).

Color values

HEX	#511D28
RGB	rgb(81, 29, 40)
HSL	hsl(347, 47%, 22%)
HSV	hsv(347, 64%, 32%)
CMYK	cmyk(0%, 64.2%, 50.6%, 68.2%)
CIE-LAB	lab(19.15, 25.50, 5.14)
CIE-LCH	lch(19.15, 26.01, 11.39°)
OKLab	oklab(31.3% 0.0774 0.0133)
OKLCH	oklch(31.3% 0.079 9.8)
XYZ	xyz(4.2160, 2.7817, 2.3220)
Luminance	0.0278 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511D28 #1D5146

analogous

#511D42 #511D28 #512C1D

triadic

#511D28 #28511D #1D2851

tetradic

#511D28 #42511D #1D5146 #2C1D51

square

#511D28 #42511D #1D5146 #2C1D51

split-complementary

#511D28 #1D512C #1D4251

monochromatic

#17080B #240D12 #511D28 #7E2D3E #AB3D55

Accessibility & contrast

On white

13.49

#511D28 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.56

#511D28 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511D28

13.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511D28	#FFFFFF	#000000	##FFFFFF
##511D28	1.00	13.49	1.56	13.49
#FFFFFF	13.49	1.00	21.00	1.00
#000000	1.56	21.00	1.00	21.00
##FFFFFF	13.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#282828

Deuteranopia (green-blind)

#353227

Tritanopia (blue-blind)

#581621

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #511d28;
/* rgb */ color: rgb(81, 29, 40);
/* oklch */ color: oklch(31.3% 0.079 9.8);

Tailwind

colors: {
  custom: {
    50: '#855c61',
    500: '#511d28',
    950: '#000000',
  },
}

SCSS

$custom: #511d28;
$custom-light: #855c61;
$custom-dark: #000000;

JSON

{
  "hex": "#511d28",
  "rgb": {
    "r": 81,
    "g": 29,
    "b": 40
  },
  "hsl": {
    "h": 347.308,
    "s": 47.273,
    "l": 21.569
  },
  "oklch": {
    "l": 0.31296,
    "c": 0.0785,
    "h": 9.8
  },
  "luminance": 0.02781
}

Semantic roles & 50–950 ramp

primary

#511D28

secondary

#448678

accent

#D7BB51

background

#F8F5F5

surface

#F0E9E9

border

#CBC5C5

text

#0B0405

muted

#7C7979

Preview Lab

Preview with #511D28

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

Preview Lab → · Contrast checker → · Palette generator →