#511B19#511B19

#511B19 is a dark, moderate red. Relative luminance 0.026; OKLCH L 30.6% C 0.082 H 25.2°. Best body text is #FFFFFF at 13.81:1 contrast (WCAG AA passes).

Color values

HEX	#511B19
RGB	rgb(81, 27, 25)
HSL	hsl(2, 53%, 21%)
HSV	hsv(2, 69%, 32%)
CMYK	cmyk(0%, 66.7%, 69.1%, 68.2%)
CIE-LAB	lab(18.38, 25.15, 14.61)
CIE-LCH	lch(18.38, 29.09, 30.14°)
OKLab	oklab(30.61% 0.0739 0.0348)
OKLCH	oklch(30.61% 0.082 25.2)
XYZ	xyz(3.9611, 2.6039, 1.2135)
Luminance	0.0260 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511B19 #194F51

analogous

#511933 #511B19 #513719

triadic

#511B19 #19511B #1B1951

tetradic

#511B19 #335119 #194F51 #371951

square

#511B19 #335119 #194F51 #371951

split-complementary

#511B19 #195137 #193351

monochromatic

#170807 #220B0B #511B19 #802B27 #AF3A36

Accessibility & contrast

On white

13.81

#511B19 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.52

#511B19 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511B19

13.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511B19	#FFFFFF	#000000	##FFFFFF
##511B19	1.00	13.81	1.52	13.81
#FFFFFF	13.81	1.00	21.00	1.00
#000000	1.52	21.00	1.00	21.00
##FFFFFF	13.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#292618

Deuteranopia (green-blind)

#363118

Tritanopia (blue-blind)

#59101B

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #511b19;
/* rgb */ color: rgb(81, 27, 25);
/* oklch */ color: oklch(30.6% 0.082 25.2);

Tailwind

colors: {
  custom: {
    50: '#865a55',
    500: '#511b19',
    950: '#000000',
  },
}

SCSS

$custom: #511b19;
$custom-light: #865a55;
$custom-dark: #000000;

JSON

{
  "hex": "#511b19",
  "rgb": {
    "r": 81,
    "g": 27,
    "b": 25
  },
  "hsl": {
    "h": 2.143,
    "s": 52.83,
    "l": 20.784
  },
  "oklch": {
    "l": 0.30605,
    "c": 0.08167,
    "h": 25.2
  },
  "luminance": 0.02603
}

Semantic roles & 50–950 ramp

primary

#511B19

secondary

#3E8587

accent

#D7DC4C

background

#F8F5F4

surface

#F0E9E8

border

#CBC5C4

text

#0C0403

muted

#7D7978

Preview Lab

Preview with #511B19

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

Preview Lab → · Contrast checker → · Palette generator →