#511C82#511C82

#511C82 is a dark, vivid violet. Relative luminance 0.042; OKLCH L 36.7% C 0.159 H 302.7°. Best body text is #FFFFFF at 11.42:1 contrast (WCAG AA passes).

Color values

HEX	#511C82
RGB	rgb(81, 28, 130)
HSL	hsl(271, 65%, 31%)
HSV	hsv(271, 78%, 51%)
CMYK	cmyk(37.7%, 78.5%, 0%, 49%)
CIE-LAB	lab(24.29, 43.94, -47.01)
CIE-LCH	lch(24.29, 64.35, 313.07°)
OKLab	oklab(36.72% 0.086 -0.1341)
OKLCH	oklch(36.72% 0.159 302.7)
XYZ	xyz(7.8369, 4.1915, 21.5109)
Luminance	0.0419 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Indigo

#4B0082

ΔE00 3.65

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511C82 #4D821C

analogous

#1E1C82 #511C82 #821C80

triadic

#511C82 #82511C #1C8251

tetradic

#511C82 #821E1C #4D821C #1C8082

square

#511C82 #821E1C #4D821C #1C8082

split-complementary

#511C82 #80821C #1C821E

monochromatic

#12061D #321150 #511C82 #7027B4 #8F42D6

Accessibility & contrast

On white

11.42

#511C82 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.84

#511C82 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511C82

11.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511C82	#FFFFFF	#000000	##FFFFFF
##511C82	1.00	11.42	1.84	11.42
#FFFFFF	11.42	1.00	21.00	1.00
#000000	1.84	21.00	1.00	21.00
##FFFFFF	11.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003985

Deuteranopia (green-blind)

#003980

Tritanopia (blue-blind)

#47364E

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #511c82;
/* rgb */ color: rgb(81, 28, 130);
/* oklch */ color: oklch(36.7% 0.159 302.7);

Tailwind

colors: {
  custom: {
    50: '#875ea7',
    500: '#511c82',
    950: '#000000',
  },
}

SCSS

$custom: #511c82;
$custom-light: #875ea7;
$custom-dark: #000000;

JSON

{
  "hex": "#511c82",
  "rgb": {
    "r": 81,
    "g": 28,
    "b": 130
  },
  "hsl": {
    "h": 271.176,
    "s": 64.557,
    "l": 30.98
  },
  "oklch": {
    "l": 0.36723,
    "c": 0.15929,
    "h": 302.7
  },
  "luminance": 0.04192
}

Semantic roles & 50–950 ramp

primary

#511C82

secondary

#7BB544

accent

#E84091

background

#F8F5FA

surface

#F0E9F4

border

#CBC5CE

text

#0C0510

muted

#7D797F

Preview Lab

Preview with #511C82

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

Preview Lab → · Contrast checker → · Palette generator →