#511C80#511C80

#511C80 is a dark, vivid violet. Relative luminance 0.041; OKLCH L 36.5% C 0.157 H 303.4°. Best body text is #FFFFFF at 11.49:1 contrast (WCAG AA passes).

Color values

HEX	#511C80
RGB	rgb(81, 28, 128)
HSL	hsl(272, 64%, 31%)
HSV	hsv(272, 78%, 50%)
CMYK	cmyk(36.7%, 78.1%, 0%, 49.8%)
CIE-LAB	lab(24.12, 43.44, -46.03)
CIE-LCH	lch(24.12, 63.29, 313.34°)
OKLab	oklab(36.55% 0.0865 -0.1312)
OKLCH	oklch(36.55% 0.157 303.4)
XYZ	xyz(7.7040, 4.1384, 20.8108)
Luminance	0.0414 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Indigo

#4B0082

ΔE00 3.73

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511C80 #4B801C

analogous

#1F1C80 #511C80 #801C7D

triadic

#511C80 #80511C #1C8051

tetradic

#511C80 #801F1C #4B801C #1C7D80

square

#511C80 #801F1C #4B801C #1C7D80

split-complementary

#511C80 #7D801C #1C801F

monochromatic

#11061C #31114E #511C80 #7127B2 #9041D5

Accessibility & contrast

On white

11.49

#511C80 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.83

#511C80 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511C80

11.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511C80	#FFFFFF	#000000	##FFFFFF
##511C80	1.00	11.49	1.83	11.49
#FFFFFF	11.49	1.00	21.00	1.00
#000000	1.83	21.00	1.00	21.00
##FFFFFF	11.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003883

Deuteranopia (green-blind)

#00397E

Tritanopia (blue-blind)

#47354D

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #511c80;
/* rgb */ color: rgb(81, 28, 128);
/* oklch */ color: oklch(36.5% 0.157 303.4);

Tailwind

colors: {
  custom: {
    50: '#875ea6',
    500: '#511c80',
    950: '#000000',
  },
}

SCSS

$custom: #511c80;
$custom-light: #875ea6;
$custom-dark: #000000;

JSON

{
  "hex": "#511c80",
  "rgb": {
    "r": 81,
    "g": 28,
    "b": 128
  },
  "hsl": {
    "h": 271.8,
    "s": 64.103,
    "l": 30.588
  },
  "oklch": {
    "l": 0.36549,
    "c": 0.15714,
    "h": 303.4
  },
  "luminance": 0.04138
}

Semantic roles & 50–950 ramp

primary

#511C80

secondary

#79B344

accent

#E7418F

background

#F8F5FA

surface

#F0E9F4

border

#CBC5CE

text

#0C050F

muted

#7D797F

Preview Lab

Preview with #511C80

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

Preview Lab → · Contrast checker → · Palette generator →