#511B80#511B80

#511B80 is a dark, vivid violet. Relative luminance 0.041; OKLCH L 36.4% C 0.158 H 303.5°. Best body text is #FFFFFF at 11.55:1 contrast (WCAG AA passes).

Color values

HEX	#511B80
RGB	rgb(81, 27, 128)
HSL	hsl(272, 65%, 30%)
HSV	hsv(272, 79%, 50%)
CMYK	cmyk(36.7%, 78.9%, 0%, 49.8%)
CIE-LAB	lab(23.97, 43.87, -46.27)
CIE-LCH	lch(23.97, 63.77, 313.47°)
OKLab	oklab(36.44% 0.0874 -0.1319)
OKLCH	oklch(36.44% 0.158 303.5)
XYZ	xyz(7.6806, 4.0917, 20.8030)
Luminance	0.0409 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Indigo

#4B0082

ΔE00 3.56

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511B80 #4A801B

analogous

#1E1B80 #511B80 #801B7C

triadic

#511B80 #80511B #1B8051

tetradic

#511B80 #801E1B #4A801B #1B7C80

square

#511B80 #801E1B #4A801B #1B7C80

split-complementary

#511B80 #7C801B #1B801E

monochromatic

#11061B #31104D #511B80 #7126B3 #903FD6

Accessibility & contrast

On white

11.55

#511B80 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.82

#511B80 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511B80

11.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511B80	#FFFFFF	#000000	##FFFFFF
##511B80	1.00	11.55	1.82	11.55
#FFFFFF	11.55	1.00	21.00	1.00
#000000	1.82	21.00	1.00	21.00
##FFFFFF	11.55	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: #511b80;
/* rgb */ color: rgb(81, 27, 128);
/* oklch */ color: oklch(36.4% 0.158 303.5);

Tailwind

colors: {
  custom: {
    50: '#875ea6',
    500: '#511b80',
    950: '#000000',
  },
}

SCSS

$custom: #511b80;
$custom-light: #875ea6;
$custom-dark: #000000;

JSON

{
  "hex": "#511b80",
  "rgb": {
    "r": 81,
    "g": 27,
    "b": 128
  },
  "hsl": {
    "h": 272.079,
    "s": 65.161,
    "l": 30.392
  },
  "oklch": {
    "l": 0.36443,
    "c": 0.15825,
    "h": 303.5
  },
  "luminance": 0.04092
}

Semantic roles & 50–950 ramp

primary

#511B80

secondary

#77B443

accent

#E8408E

background

#F8F5FA

surface

#F0E9F4

border

#CBC5CE

text

#0C050F

muted

#7D797F

Preview Lab

Preview with #511B80

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

Preview Lab → · Contrast checker → · Palette generator →