#511D19#511D19

#511D19 is a dark, moderate red. Relative luminance 0.027; OKLCH L 30.9% C 0.079 H 27.1°. Best body text is #FFFFFF at 13.64:1 contrast (WCAG AA passes).

Color values

HEX	#511D19
RGB	rgb(81, 29, 25)
HSL	hsl(4, 53%, 21%)
HSV	hsv(4, 69%, 32%)
CMYK	cmyk(0%, 64.2%, 69.1%, 68.2%)
CIE-LAB	lab(18.79, 24.06, 15.12)
CIE-LCH	lch(18.79, 28.42, 32.15°)
OKLab	oklab(30.92% 0.0705 0.036)
OKLCH	oklch(30.92% 0.079 27.1)
XYZ	xyz(4.0085, 2.6988, 1.2293)
Luminance	0.0270 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511D19 #194D51

analogous

#511931 #511D19 #513919

triadic

#511D19 #19511D #1D1951

tetradic

#511D19 #315119 #194D51 #391951

square

#511D19 #315119 #194D51 #391951

split-complementary

#511D19 #195139 #193151

monochromatic

#170807 #220C0B #511D19 #802E27 #AF3E36

Accessibility & contrast

On white

13.64

#511D19 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.54

#511D19 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511D19

13.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511D19	#FFFFFF	#000000	##FFFFFF
##511D19	1.00	13.64	1.54	13.64
#FFFFFF	13.64	1.00	21.00	1.00
#000000	1.54	21.00	1.00	21.00
##FFFFFF	13.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A2718

Deuteranopia (green-blind)

#373218

Tritanopia (blue-blind)

#59131C

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #511d19;
/* rgb */ color: rgb(81, 29, 25);
/* oklch */ color: oklch(30.9% 0.079 27.1);

Tailwind

colors: {
  custom: {
    50: '#865b55',
    500: '#511d19',
    950: '#000000',
  },
}

SCSS

$custom: #511d19;
$custom-light: #865b55;
$custom-dark: #000000;

JSON

{
  "hex": "#511d19",
  "rgb": {
    "r": 81,
    "g": 29,
    "b": 25
  },
  "hsl": {
    "h": 4.286,
    "s": 52.83,
    "l": 20.784
  },
  "oklch": {
    "l": 0.30915,
    "c": 0.07911,
    "h": 27.1
  },
  "luminance": 0.02698
}

Semantic roles & 50–950 ramp

primary

#511D19

secondary

#3E8287

accent

#D2DC4C

background

#F8F5F4

surface

#F0E9E8

border

#CBC5C4

text

#0C0403

muted

#7D7978

Preview Lab

Preview with #511D19

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

Preview Lab → · Contrast checker → · Palette generator →