#511B7C#511B7C

#511B7C is a dark, vivid violet. Relative luminance 0.040; OKLCH L 36.1% C 0.154 H 305.0°. Best body text is #FFFFFF at 11.68:1 contrast (WCAG AA passes).

Color values

HEX	#511B7C
RGB	rgb(81, 27, 124)
HSL	hsl(273, 64%, 30%)
HSV	hsv(273, 78%, 49%)
CMYK	cmyk(34.7%, 78.2%, 0%, 51.4%)
CIE-LAB	lab(23.63, 42.88, -44.29)
CIE-LCH	lch(23.63, 61.65, 314.07°)
OKLab	oklab(36.1% 0.0884 -0.1261)
OKLCH	oklch(36.1% 0.154 305)
XYZ	xyz(7.4225, 3.9885, 19.4437)
Luminance	0.0399 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Indigo

#4B0082

ΔE00 3.83

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511B7C #467C1B

analogous

#211B7C #511B7C #7C1B77

triadic

#511B7C #7C511B #1B7C51

tetradic

#511B7C #7C211B #467C1B #1B777C

square

#511B7C #7C211B #467C1B #1B777C

split-complementary

#511B7C #777C1B #1B7C21

monochromatic

#100519 #30104A #511B7C #7226AE #913DD5

Accessibility & contrast

On white

11.68

#511B7C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#511B7C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511B7C

11.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511B7C	#FFFFFF	#000000	##FFFFFF
##511B7C	1.00	11.68	1.80	11.68
#FFFFFF	11.68	1.00	21.00	1.00
#000000	1.80	21.00	1.00	21.00
##FFFFFF	11.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00377F

Deuteranopia (green-blind)

#00387A

Tritanopia (blue-blind)

#49334A

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #511b7c;
/* rgb */ color: rgb(81, 27, 124);
/* oklch */ color: oklch(36.1% 0.154 305.0);

Tailwind

colors: {
  custom: {
    50: '#865ea3',
    500: '#511b7c',
    950: '#000000',
  },
}

SCSS

$custom: #511b7c;
$custom-light: #865ea3;
$custom-dark: #000000;

JSON

{
  "hex": "#511b7c",
  "rgb": {
    "r": 81,
    "g": 27,
    "b": 124
  },
  "hsl": {
    "h": 273.402,
    "s": 64.238,
    "l": 29.608
  },
  "oklch": {
    "l": 0.36099,
    "c": 0.15399,
    "h": 305
  },
  "luminance": 0.03988
}

Semantic roles & 50–950 ramp

primary

#511B7C

secondary

#73B043

accent

#E7418A

background

#F8F5FA

surface

#F0E9F4

border

#CBC5CE

text

#0C050F

muted

#7D797F

Preview Lab

Preview with #511B7C

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

Preview Lab → · Contrast checker → · Palette generator →