#511C20#511C20

#511C20 is a dark, moderate red. Relative luminance 0.027; OKLCH L 30.9% C 0.080 H 18.5°. Best body text is #FFFFFF at 13.66:1 contrast (WCAG AA passes).

Color values

HEX	#511C20
RGB	rgb(81, 28, 32)
HSL	hsl(355, 49%, 21%)
HSV	hsv(355, 65%, 32%)
CMYK	cmyk(0%, 65.4%, 60.5%, 68.2%)
CIE-LAB	lab(18.73, 25.21, 10.19)
CIE-LCH	lch(18.73, 27.19, 22.02°)
OKLab	oklab(30.92% 0.0754 0.0253)
OKLCH	oklch(30.92% 0.08 18.5)
XYZ	xyz(4.0697, 2.6846, 1.6701)
Luminance	0.0268 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511C20 #1C514D

analogous

#511C3B #511C20 #51331C

triadic

#511C20 #20511C #1C2051

tetradic

#511C20 #3B511C #1C514D #331C51

square

#511C20 #3B511C #1C514D #331C51

split-complementary

#511C20 #1C5133 #1C3B51

monochromatic

#170809 #240C0E #511C20 #7E2C32 #AC3B44

Accessibility & contrast

On white

13.66

#511C20 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.54

#511C20 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511C20

13.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511C20	#FFFFFF	#000000	##FFFFFF
##511C20	1.00	13.66	1.54	13.66
#FFFFFF	13.66	1.00	21.00	1.00
#000000	1.54	21.00	1.00	21.00
##FFFFFF	13.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#292720

Deuteranopia (green-blind)

#36321F

Tritanopia (blue-blind)

#59131E

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #511c20;
/* rgb */ color: rgb(81, 28, 32);
/* oklch */ color: oklch(30.9% 0.080 18.5);

Tailwind

colors: {
  custom: {
    50: '#865b5b',
    500: '#511c20',
    950: '#000000',
  },
}

SCSS

$custom: #511c20;
$custom-light: #865b5b;
$custom-dark: #000000;

JSON

{
  "hex": "#511c20",
  "rgb": {
    "r": 81,
    "g": 28,
    "b": 32
  },
  "hsl": {
    "h": 355.472,
    "s": 48.624,
    "l": 21.373
  },
  "oklch": {
    "l": 0.30917,
    "c": 0.07953,
    "h": 18.5
  },
  "luminance": 0.02684
}

Semantic roles & 50–950 ramp

primary

#511C20

secondary

#428781

accent

#D8CE50

background

#F8F5F5

surface

#F0E9E9

border

#CBC5C5

text

#0C0404

muted

#7D7979

Preview Lab

Preview with #511C20

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

Preview Lab → · Contrast checker → · Palette generator →