#511D25#511D25

#511D25 is a dark, moderate red. Relative luminance 0.028; OKLCH L 31.2% C 0.078 H 13.4°. Best body text is #FFFFFF at 13.53:1 contrast (WCAG AA passes).

Color values

HEX	#511D25
RGB	rgb(81, 29, 37)
HSL	hsl(351, 47%, 22%)
HSV	hsv(351, 64%, 32%)
CMYK	cmyk(0%, 64.2%, 54.3%, 68.2%)
CIE-LAB	lab(19.06, 25.16, 7.13)
CIE-LCH	lch(19.06, 26.16, 15.83°)
OKLab	oklab(31.21% 0.076 0.0182)
OKLCH	oklch(31.21% 0.078 13.4)
XYZ	xyz(4.1670, 2.7621, 2.0636)
Luminance	0.0276 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511D25 #1D5149

analogous

#511D3F #511D25 #512F1D

triadic

#511D25 #25511D #1D2551

tetradic

#511D25 #3F511D #1D5149 #2F1D51

square

#511D25 #3F511D #1D5149 #2F1D51

split-complementary

#511D25 #1D512F #1D3F51

monochromatic

#17080A #240D10 #511D25 #7E2D3A #AB3D4E

Accessibility & contrast

On white

13.53

#511D25 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.55

#511D25 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511D25

13.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511D25	#FFFFFF	#000000	##FFFFFF
##511D25	1.00	13.53	1.55	13.53
#FFFFFF	13.53	1.00	21.00	1.00
#000000	1.55	21.00	1.00	21.00
##FFFFFF	13.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#282825

Deuteranopia (green-blind)

#363224

Tritanopia (blue-blind)

#591520

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #511d25;
/* rgb */ color: rgb(81, 29, 37);
/* oklch */ color: oklch(31.2% 0.078 13.4);

Tailwind

colors: {
  custom: {
    50: '#855b5f',
    500: '#511d25',
    950: '#000000',
  },
}

SCSS

$custom: #511d25;
$custom-light: #855b5f;
$custom-dark: #000000;

JSON

{
  "hex": "#511d25",
  "rgb": {
    "r": 81,
    "g": 29,
    "b": 37
  },
  "hsl": {
    "h": 350.769,
    "s": 47.273,
    "l": 21.569
  },
  "oklch": {
    "l": 0.31207,
    "c": 0.07814,
    "h": 13.4
  },
  "luminance": 0.02762
}

Semantic roles & 50–950 ramp

primary

#511D25

secondary

#44867C

accent

#D7C251

background

#F8F5F5

surface

#F0E9E9

border

#CBC5C5

text

#0B0404

muted

#7C7979

Preview Lab

Preview with #511D25

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

Preview Lab → · Contrast checker → · Palette generator →