#511C7E#511C7E

#511C7E is a dark, vivid violet. Relative luminance 0.041; OKLCH L 36.4% C 0.155 H 304.1°. Best body text is #FFFFFF at 11.56:1 contrast (WCAG AA passes).

Color values

HEX	#511C7E
RGB	rgb(81, 28, 126)
HSL	hsl(272, 64%, 30%)
HSV	hsv(272, 78%, 49%)
CMYK	cmyk(35.7%, 77.8%, 0%, 50.6%)
CIE-LAB	lab(23.95, 42.94, -45.04)
CIE-LCH	lch(23.95, 62.23, 313.63°)
OKLab	oklab(36.38% 0.087 -0.1283)
OKLCH	oklch(36.38% 0.155 304.1)
XYZ	xyz(7.5736, 4.0862, 20.1243)
Luminance	0.0409 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Indigo

#4B0082

ΔE00 3.84

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511C7E #497E1C

analogous

#201C7E #511C7E #7E1C7A

triadic

#511C7E #7E511C #1C7E51

tetradic

#511C7E #7E201C #497E1C #1C7A7E

square

#511C7E #7E201C #497E1C #1C7A7E

split-complementary

#511C7E #7A7E1C #1C7E20

monochromatic

#11061A #31114C #511C7E #7127B0 #9040D5

Accessibility & contrast

On white

11.56

#511C7E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.82

#511C7E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511C7E

11.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511C7E	#FFFFFF	#000000	##FFFFFF
##511C7E	1.00	11.56	1.82	11.56
#FFFFFF	11.56	1.00	21.00	1.00
#000000	1.82	21.00	1.00	21.00
##FFFFFF	11.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003881

Deuteranopia (green-blind)

#00397C

Tritanopia (blue-blind)

#48354C

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #511c7e;
/* rgb */ color: rgb(81, 28, 126);
/* oklch */ color: oklch(36.4% 0.155 304.1);

Tailwind

colors: {
  custom: {
    50: '#875ea4',
    500: '#511c7e',
    950: '#000000',
  },
}

SCSS

$custom: #511c7e;
$custom-light: #875ea4;
$custom-dark: #000000;

JSON

{
  "hex": "#511c7e",
  "rgb": {
    "r": 81,
    "g": 28,
    "b": 126
  },
  "hsl": {
    "h": 272.449,
    "s": 63.636,
    "l": 30.196
  },
  "oklch": {
    "l": 0.36377,
    "c": 0.15499,
    "h": 304.1
  },
  "luminance": 0.04086
}

Semantic roles & 50–950 ramp

primary

#511C7E

secondary

#76B244

accent

#E7418D

background

#F8F5FA

surface

#F0E9F4

border

#CBC5CE

text

#0C050F

muted

#7D797F

Preview Lab

Preview with #511C7E

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

Preview Lab → · Contrast checker → · Palette generator →