#511D1A#511D1A

#511D1A is a dark, moderate red. Relative luminance 0.027; OKLCH L 30.9% C 0.079 H 26.0°. Best body text is #FFFFFF at 13.63:1 contrast (WCAG AA passes).

Color values

HEX	#511D1A
RGB	rgb(81, 29, 26)
HSL	hsl(3, 51%, 21%)
HSV	hsv(3, 68%, 32%)
CMYK	cmyk(0%, 64.2%, 67.9%, 68.2%)
CIE-LAB	lab(18.81, 24.14, 14.46)
CIE-LCH	lch(18.81, 28.14, 30.93°)
OKLab	oklab(30.94% 0.0709 0.0346)
OKLCH	oklch(30.94% 0.079 26)
XYZ	xyz(4.0195, 2.7032, 1.2872)
Luminance	0.0270 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511D1A #1A4E51

analogous

#511A32 #511D1A #51381A

triadic

#511D1A #1A511D #1D1A51

tetradic

#511D1A #32511A #1A4E51 #381A51

square

#511D1A #32511A #1A4E51 #381A51

split-complementary

#511D1A #1A5138 #1A3251

monochromatic

#170807 #230C0B #511D1A #7F2E29 #AE3E38

Accessibility & contrast

On white

13.63

#511D1A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.54

#511D1A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511D1A

13.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511D1A	#FFFFFF	#000000	##FFFFFF
##511D1A	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)

#2A2719

Deuteranopia (green-blind)

#373219

Tritanopia (blue-blind)

#59131D

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #511d1a;
/* rgb */ color: rgb(81, 29, 26);
/* oklch */ color: oklch(30.9% 0.079 26.0);

Tailwind

colors: {
  custom: {
    50: '#865b56',
    500: '#511d1a',
    950: '#000000',
  },
}

SCSS

$custom: #511d1a;
$custom-light: #865b56;
$custom-dark: #000000;

JSON

{
  "hex": "#511d1a",
  "rgb": {
    "r": 81,
    "g": 29,
    "b": 26
  },
  "hsl": {
    "h": 3.273,
    "s": 51.402,
    "l": 20.98
  },
  "oklch": {
    "l": 0.30936,
    "c": 0.07891,
    "h": 26
  },
  "luminance": 0.02703
}

Semantic roles & 50–950 ramp

primary

#511D1A

secondary

#408387

accent

#D3DB4D

background

#F8F5F5

surface

#F0E9E9

border

#CBC5C5

text

#0C0403

muted

#7D7978

Preview Lab

Preview with #511D1A

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

Preview Lab → · Contrast checker → · Palette generator →