#511881#511881

#511881 is a dark, vivid violet. Relative luminance 0.040; OKLCH L 36.2% C 0.162 H 303.6°. Best body text is #FFFFFF at 11.68:1 contrast (WCAG AA passes).

Color values

HEX	#511881
RGB	rgb(81, 24, 129)
HSL	hsl(273, 69%, 30%)
HSV	hsv(273, 81%, 51%)
CMYK	cmyk(37.2%, 81.4%, 0%, 49.4%)
CIE-LAB	lab(23.63, 45.35, -47.46)
CIE-LCH	lch(23.63, 65.65, 313.70°)
OKLab	oklab(36.23% 0.0898 -0.1354)
OKLCH	oklch(36.23% 0.162 303.6)
XYZ	xyz(7.6815, 3.9876, 21.1296)
Luminance	0.0399 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Indigo

#4B0082

ΔE00 3.04

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511881 #488118

analogous

#1C1881 #511881 #81187D

triadic

#511881 #815118 #188151

tetradic

#511881 #811C18 #488118 #187D81

square

#511881 #811C18 #488118 #187D81

split-complementary

#511881 #7D8118 #18811C

monochromatic

#10051A #310E4D #511881 #7122B5 #9139DA

Accessibility & contrast

On white

11.68

#511881 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#511881 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511881

11.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511881	#FFFFFF	#000000	##FFFFFF
##511881	1.00	11.68	1.80	11.68
#FFFFFF	11.68	1.00	21.00	1.00
#000000	1.80	21.00	1.00	21.00
##FFFFFF	11.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003784

Deuteranopia (green-blind)

#00387F

Tritanopia (blue-blind)

#47344D

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #511881;
/* rgb */ color: rgb(81, 24, 129);
/* oklch */ color: oklch(36.2% 0.162 303.6);

Tailwind

colors: {
  custom: {
    50: '#875da6',
    500: '#511881',
    950: '#000000',
  },
}

SCSS

$custom: #511881;
$custom-light: #875da6;
$custom-dark: #000000;

JSON

{
  "hex": "#511881",
  "rgb": {
    "r": 81,
    "g": 24,
    "b": 129
  },
  "hsl": {
    "h": 272.571,
    "s": 68.627,
    "l": 30
  },
  "oklch": {
    "l": 0.3623,
    "c": 0.16246,
    "h": 303.6
  },
  "luminance": 0.03988
}

Semantic roles & 50–950 ramp

primary

#511881

secondary

#75B540

accent

#EB3C8C

background

#F8F5FA

surface

#F0E9F4

border

#CBC5CE

text

#0C040F

muted

#7D797F

Preview Lab

Preview with #511881

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

Preview Lab → · Contrast checker → · Palette generator →