#511B7F#511B7F

#511B7F is a dark, vivid violet. Relative luminance 0.041; OKLCH L 36.4% C 0.157 H 303.9°. Best body text is #FFFFFF at 11.58:1 contrast (WCAG AA passes).

Color values

HEX	#511B7F
RGB	rgb(81, 27, 127)
HSL	hsl(272, 65%, 30%)
HSV	hsv(272, 79%, 50%)
CMYK	cmyk(36.2%, 78.7%, 0%, 50.2%)
CIE-LAB	lab(23.89, 43.62, -45.78)
CIE-LCH	lch(23.89, 63.24, 313.62°)
OKLab	oklab(36.36% 0.0877 -0.1305)
OKLCH	oklch(36.36% 0.157 303.9)
XYZ	xyz(7.6151, 4.0655, 20.4581)
Luminance	0.0407 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Indigo

#4B0082

ΔE00 3.61

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511B7F #497F1B

analogous

#1F1B7F #511B7F #7F1B7B

triadic

#511B7F #7F511B #1B7F51

tetradic

#511B7F #7F1F1B #497F1B #1B7B7F

square

#511B7F #7F1F1B #497F1B #1B7B7F

split-complementary

#511B7F #7B7F1B #1B7F1F

monochromatic

#11061A #31104D #511B7F #7126B1 #903ED6

Accessibility & contrast

On white

11.58

#511B7F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#511B7F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511B7F

11.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511B7F	#FFFFFF	#000000	##FFFFFF
##511B7F	1.00	11.58	1.81	11.58
#FFFFFF	11.58	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003882

Deuteranopia (green-blind)

#00397D

Tritanopia (blue-blind)

#48354C

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #511b7f;
/* rgb */ color: rgb(81, 27, 127);
/* oklch */ color: oklch(36.4% 0.157 303.9);

Tailwind

colors: {
  custom: {
    50: '#875ea5',
    500: '#511b7f',
    950: '#000000',
  },
}

SCSS

$custom: #511b7f;
$custom-light: #875ea5;
$custom-dark: #000000;

JSON

{
  "hex": "#511b7f",
  "rgb": {
    "r": 81,
    "g": 27,
    "b": 127
  },
  "hsl": {
    "h": 272.4,
    "s": 64.935,
    "l": 30.196
  },
  "oklch": {
    "l": 0.36356,
    "c": 0.15719,
    "h": 303.9
  },
  "luminance": 0.04066
}

Semantic roles & 50–950 ramp

primary

#511B7F

secondary

#76B343

accent

#E8408D

background

#F8F5FA

surface

#F0E9F4

border

#CBC5CE

text

#0C050F

muted

#7D797F

Preview Lab

Preview with #511B7F

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

Preview Lab → · Contrast checker → · Palette generator →