#511581#511581

#511581 is a dark, vivid violet. Relative luminance 0.039; OKLCH L 36.0% C 0.165 H 303.9°. Best body text is #FFFFFF at 11.84:1 contrast (WCAG AA passes).

Color values

HEX	#511581
RGB	rgb(81, 21, 129)
HSL	hsl(273, 72%, 29%)
HSV	hsv(273, 84%, 51%)
CMYK	cmyk(37.2%, 83.7%, 0%, 49.4%)
CIE-LAB	lab(23.24, 46.49, -48.10)
CIE-LCH	lch(23.24, 66.90, 314.02°)
OKLab	oklab(35.96% 0.0922 -0.1372)
OKLCH	oklch(35.96% 0.165 303.9)
XYZ	xyz(7.6230, 3.8707, 21.1101)
Luminance	0.0387 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Indigo

#4B0082

ΔE00 2.63

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511581 #458115

analogous

#1B1581 #511581 #81157B

triadic

#511581 #815115 #158151

tetradic

#511581 #811B15 #458115 #157B81

square

#511581 #811B15 #458115 #157B81

split-complementary

#511581 #7B8115 #15811B

monochromatic

#11041A #300C4C #511581 #721EB6 #9233DE

Accessibility & contrast

On white

11.84

#511581 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.77

#511581 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511581

11.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511581	#FFFFFF	#000000	##FFFFFF
##511581	1.00	11.84	1.77	11.84
#FFFFFF	11.84	1.00	21.00	1.00
#000000	1.77	21.00	1.00	21.00
##FFFFFF	11.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003684

Deuteranopia (green-blind)

#00377F

Tritanopia (blue-blind)

#47334C

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #511581;
/* rgb */ color: rgb(81, 21, 129);
/* oklch */ color: oklch(36.0% 0.165 303.9);

Tailwind

colors: {
  custom: {
    50: '#875ba6',
    500: '#511581',
    950: '#000000',
  },
}

SCSS

$custom: #511581;
$custom-light: #875ba6;
$custom-dark: #000000;

JSON

{
  "hex": "#511581",
  "rgb": {
    "r": 81,
    "g": 21,
    "b": 129
  },
  "hsl": {
    "h": 273.333,
    "s": 72,
    "l": 29.412
  },
  "oklch": {
    "l": 0.35958,
    "c": 0.16535,
    "h": 303.9
  },
  "luminance": 0.03871
}

Semantic roles & 50–950 ramp

primary

#511581

secondary

#72B63C

accent

#EF398A

background

#F8F5FA

surface

#F0E9F4

border

#CBC5CE

text

#0C040F

muted

#7D797F

Preview Lab

Preview with #511581

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

Preview Lab → · Contrast checker → · Palette generator →