#511C78#511C78

#511C78 is a dark, vivid violet. Relative luminance 0.039; OKLCH L 35.9% C 0.149 H 306.5°. Best body text is #FFFFFF at 11.75:1 contrast (WCAG AA passes).

Color values

HEX	#511C78
RGB	rgb(81, 28, 120)
HSL	hsl(275, 62%, 29%)
HSV	hsv(275, 77%, 47%)
CMYK	cmyk(32.5%, 76.7%, 0%, 52.9%)
CIE-LAB	lab(23.46, 41.46, -42.03)
CIE-LCH	lch(23.46, 59.04, 314.61°)
OKLab	oklab(35.87% 0.0883 -0.1194)
OKLCH	oklch(35.87% 0.149 306.5)
XYZ	xyz(7.1980, 3.9360, 18.1462)
Luminance	0.0394 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511C78 #43781C

analogous

#231C78 #511C78 #781C71

triadic

#511C78 #78511C #1C7851

tetradic

#511C78 #78231C #43781C #1C7178

square

#511C78 #78231C #43781C #1C7178

split-complementary

#511C78 #71781C #1C7823

monochromatic

#110619 #301046 #511C78 #7228AA #933DD2

Accessibility & contrast

On white

11.75

#511C78 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.79

#511C78 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511C78

11.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511C78	#FFFFFF	#000000	##FFFFFF
##511C78	1.00	11.75	1.79	11.75
#FFFFFF	11.75	1.00	21.00	1.00
#000000	1.79	21.00	1.00	21.00
##FFFFFF	11.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00367B

Deuteranopia (green-blind)

#003876

Tritanopia (blue-blind)

#4A3248

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #511c78;
/* rgb */ color: rgb(81, 28, 120);
/* oklch */ color: oklch(35.9% 0.149 306.5);

Tailwind

colors: {
  custom: {
    50: '#865ea0',
    500: '#511c78',
    950: '#000000',
  },
}

SCSS

$custom: #511c78;
$custom-light: #865ea0;
$custom-dark: #000000;

JSON

{
  "hex": "#511c78",
  "rgb": {
    "r": 81,
    "g": 28,
    "b": 120
  },
  "hsl": {
    "h": 274.565,
    "s": 62.162,
    "l": 29.02
  },
  "oklch": {
    "l": 0.35872,
    "c": 0.14853,
    "h": 306.5
  },
  "luminance": 0.03936
}

Semantic roles & 50–950 ramp

primary

#511C78

secondary

#70AC44

accent

#E54388

background

#F8F5F9

surface

#F0E9F2

border

#CBC5CC

text

#0C050F

muted

#7D797E

Preview Lab

Preview with #511C78

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

Preview Lab → · Contrast checker → · Palette generator →