#511C23#511C23

#511C23 is a dark, moderate red. Relative luminance 0.027; OKLCH L 31.0% C 0.080 H 15.0°. Best body text is #FFFFFF at 13.63:1 contrast (WCAG AA passes).

Color values

HEX	#511C23
RGB	rgb(81, 28, 35)
HSL	hsl(352, 49%, 21%)
HSV	hsv(352, 65%, 32%)
CMYK	cmyk(0%, 65.4%, 56.8%, 68.2%)
CIE-LAB	lab(18.81, 25.50, 8.19)
CIE-LCH	lch(18.81, 26.78, 17.80°)
OKLab	oklab(31% 0.0768 0.0206)
OKLCH	oklch(31% 0.08 15)
XYZ	xyz(4.1123, 2.7017, 1.8947)
Luminance	0.0270 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511C23 #1C514A

analogous

#511C3E #511C23 #51301C

triadic

#511C23 #23511C #1C2351

tetradic

#511C23 #3E511C #1C514A #301C51

square

#511C23 #3E511C #1C514A #301C51

split-complementary

#511C23 #1C5130 #1C3E51

monochromatic

#17080A #240C0F #511C23 #7E2C37 #AC3B4A

Accessibility & contrast

On white

13.63

#511C23 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.54

#511C23 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511C23

13.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511C23	#FFFFFF	#000000	##FFFFFF
##511C23	1.00	13.63	1.54	13.63
#FFFFFF	13.63	1.00	21.00	1.00
#000000	1.54	21.00	1.00	21.00
##FFFFFF	13.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#282723

Deuteranopia (green-blind)

#363222

Tritanopia (blue-blind)

#59141F

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #511c23;
/* rgb */ color: rgb(81, 28, 35);
/* oklch */ color: oklch(31.0% 0.080 15.0);

Tailwind

colors: {
  custom: {
    50: '#855b5d',
    500: '#511c23',
    950: '#000000',
  },
}

SCSS

$custom: #511c23;
$custom-light: #855b5d;
$custom-dark: #000000;

JSON

{
  "hex": "#511c23",
  "rgb": {
    "r": 81,
    "g": 28,
    "b": 35
  },
  "hsl": {
    "h": 352.075,
    "s": 48.624,
    "l": 21.373
  },
  "oklch": {
    "l": 0.30996,
    "c": 0.07952,
    "h": 15
  },
  "luminance": 0.02701
}

Semantic roles & 50–950 ramp

primary

#511C23

secondary

#42877E

accent

#D8C650

background

#F8F5F5

surface

#F0E9E9

border

#CBC5C5

text

#0B0404

muted

#7C7979

Preview Lab

Preview with #511C23

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

Preview Lab → · Contrast checker → · Palette generator →