#511B8A#511B8A

#511B8A is a dark, vivid violet. Relative luminance 0.044; OKLCH L 37.3% C 0.169 H 300.1°. Best body text is #FFFFFF at 11.21:1 contrast (WCAG AA passes).

Color values

HEX	#511B8A
RGB	rgb(81, 27, 138)
HSL	hsl(269, 67%, 32%)
HSV	hsv(269, 80%, 54%)
CMYK	cmyk(41.3%, 80.4%, 0%, 45.9%)
CIE-LAB	lab(24.85, 46.37, -51.11)
CIE-LCH	lch(24.85, 69.02, 312.22°)
OKLab	oklab(37.33% 0.0847 -0.1461)
OKLCH	oklch(37.33% 0.169 300.1)
XYZ	xyz(8.3716, 4.3681, 24.4419)
Luminance	0.0437 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511B8A #548A1B

analogous

#1B1D8A #511B8A #891B8A

triadic

#511B8A #8A511B #1B8A51

tetradic

#511B8A #8A1B1D #548A1B #1B8A89

square

#511B8A #8A1B1D #548A1B #1B8A89

split-complementary

#511B8A #8A891B #1D8A1B

monochromatic

#150724 #331157 #511B8A #6F25BD #8E45DB

Accessibility & contrast

On white

11.21

#511B8A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.87

#511B8A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511B8A

11.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511B8A	#FFFFFF	#000000	##FFFFFF
##511B8A	1.00	11.21	1.87	11.21
#FFFFFF	11.21	1.00	21.00	1.00
#000000	1.87	21.00	1.00	21.00
##FFFFFF	11.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003B8D

Deuteranopia (green-blind)

#003A88

Tritanopia (blue-blind)

#443952

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #511b8a;
/* rgb */ color: rgb(81, 27, 138);
/* oklch */ color: oklch(37.3% 0.169 300.1);

Tailwind

colors: {
  custom: {
    50: '#885ead',
    500: '#511b8a',
    950: '#000000',
  },
}

SCSS

$custom: #511b8a;
$custom-light: #885ead;
$custom-dark: #000000;

JSON

{
  "hex": "#511b8a",
  "rgb": {
    "r": 81,
    "g": 27,
    "b": 138
  },
  "hsl": {
    "h": 269.189,
    "s": 67.273,
    "l": 32.353
  },
  "oklch": {
    "l": 0.37331,
    "c": 0.16888,
    "h": 300.1
  },
  "luminance": 0.04368
}

Semantic roles & 50–950 ramp

primary

#511B8A

secondary

#82BC45

accent

#EA3E96

background

#F8F5FA

surface

#F0E9F4

border

#CBC5CE

text

#0C0510

muted

#7D797F

Preview Lab

Preview with #511B8A

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

Preview Lab → · Contrast checker → · Palette generator →