#511E1A#511E1A

#511E1A is a dark, moderate red. Relative luminance 0.028; OKLCH L 31.1% C 0.078 H 27.0°. Best body text is #FFFFFF at 13.54:1 contrast (WCAG AA passes).

Color values

HEX	#511E1A
RGB	rgb(81, 30, 26)
HSL	hsl(4, 51%, 21%)
HSV	hsv(4, 68%, 32%)
CMYK	cmyk(0%, 63%, 67.9%, 68.2%)
CIE-LAB	lab(19.03, 23.58, 14.73)
CIE-LCH	lch(19.03, 27.81, 31.99°)
OKLab	oklab(31.1% 0.0692 0.0352)
OKLCH	oklch(31.1% 0.078 27)
XYZ	xyz(4.0444, 2.7530, 1.2955)
Luminance	0.0275 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511E1A #1A4D51

analogous

#511A31 #511E1A #51391A

triadic

#511E1A #1A511E #1E1A51

tetradic

#511E1A #31511A #1A4D51 #391A51

square

#511E1A #31511A #1A4D51 #391A51

split-complementary

#511E1A #1A5139 #1A3151

monochromatic

#170907 #230D0B #511E1A #7F2F29 #AE4038

Accessibility & contrast

On white

13.54

#511E1A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.55

#511E1A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511E1A

13.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511E1A	#FFFFFF	#000000	##FFFFFF
##511E1A	1.00	13.54	1.55	13.54
#FFFFFF	13.54	1.00	21.00	1.00
#000000	1.55	21.00	1.00	21.00
##FFFFFF	13.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B2719

Deuteranopia (green-blind)

#383219

Tritanopia (blue-blind)

#59141D

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #511e1a;
/* rgb */ color: rgb(81, 30, 26);
/* oklch */ color: oklch(31.1% 0.078 27.0);

Tailwind

colors: {
  custom: {
    50: '#865c56',
    500: '#511e1a',
    950: '#000000',
  },
}

SCSS

$custom: #511e1a;
$custom-light: #865c56;
$custom-dark: #000000;

JSON

{
  "hex": "#511e1a",
  "rgb": {
    "r": 81,
    "g": 30,
    "b": 26
  },
  "hsl": {
    "h": 4.364,
    "s": 51.402,
    "l": 20.98
  },
  "oklch": {
    "l": 0.31096,
    "c": 0.07762,
    "h": 27
  },
  "luminance": 0.02752
}

Semantic roles & 50–950 ramp

primary

#511E1A

secondary

#408287

accent

#D1DB4D

background

#F8F5F5

surface

#F0E9E9

border

#CBC5C5

text

#0C0403

muted

#7D7978

Preview Lab

Preview with #511E1A

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

Preview Lab → · Contrast checker → · Palette generator →