#511C24#511C24

#511C24 is a dark, moderate red. Relative luminance 0.027; OKLCH L 31.0% C 0.080 H 13.9°. Best body text is #FFFFFF at 13.62:1 contrast (WCAG AA passes).

Color values

HEX	#511C24
RGB	rgb(81, 28, 36)
HSL	hsl(351, 49%, 21%)
HSV	hsv(351, 65%, 32%)
CMYK	cmyk(0%, 65.4%, 55.6%, 68.2%)
CIE-LAB	lab(18.83, 25.60, 7.52)
CIE-LCH	lch(18.83, 26.68, 16.36°)
OKLab	oklab(31.02% 0.0773 0.0191)
OKLCH	oklch(31.02% 0.08 13.9)
XYZ	xyz(4.1274, 2.7077, 1.9740)
Luminance	0.0271 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511C24 #1C5149

analogous

#511C3F #511C24 #512F1C

triadic

#511C24 #24511C #1C2451

tetradic

#511C24 #3F511C #1C5149 #2F1C51

square

#511C24 #3F511C #1C5149 #2F1C51

split-complementary

#511C24 #1C512F #1C3F51

monochromatic

#17080A #240C10 #511C24 #7E2C38 #AC3B4C

Accessibility & contrast

On white

13.62

#511C24 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.54

#511C24 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511C24

13.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511C24	#FFFFFF	#000000	##FFFFFF
##511C24	1.00	13.62	1.54	13.62
#FFFFFF	13.62	1.00	21.00	1.00
#000000	1.54	21.00	1.00	21.00
##FFFFFF	13.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#282724

Deuteranopia (green-blind)

#353223

Tritanopia (blue-blind)

#59141F

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #511c24;
/* rgb */ color: rgb(81, 28, 36);
/* oklch */ color: oklch(31.0% 0.080 13.9);

Tailwind

colors: {
  custom: {
    50: '#855b5e',
    500: '#511c24',
    950: '#000000',
  },
}

SCSS

$custom: #511c24;
$custom-light: #855b5e;
$custom-dark: #000000;

JSON

{
  "hex": "#511c24",
  "rgb": {
    "r": 81,
    "g": 28,
    "b": 36
  },
  "hsl": {
    "h": 350.943,
    "s": 48.624,
    "l": 21.373
  },
  "oklch": {
    "l": 0.31024,
    "c": 0.07958,
    "h": 13.9
  },
  "luminance": 0.02707
}

Semantic roles & 50–950 ramp

primary

#511C24

secondary

#42877C

accent

#D8C450

background

#F8F5F5

surface

#F0E9E9

border

#CBC5C5

text

#0B0404

muted

#7C7979

Preview Lab

Preview with #511C24

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

Preview Lab → · Contrast checker → · Palette generator →