#511381#511381

#511381 is a dark, vivid violet. Relative luminance 0.038; OKLCH L 35.8% C 0.167 H 304.1°. Best body text is #FFFFFF at 11.93:1 contrast (WCAG AA passes).

Color values

HEX	#511381
RGB	rgb(81, 19, 129)
HSL	hsl(274, 74%, 29%)
HSV	hsv(274, 85%, 51%)
CMYK	cmyk(37.2%, 85.3%, 0%, 49.4%)
CIE-LAB	lab(23.00, 47.19, -48.49)
CIE-LCH	lch(23.00, 67.67, 314.22°)
OKLab	oklab(35.79% 0.0937 -0.1384)
OKLCH	oklch(35.79% 0.167 304.1)
XYZ	xyz(7.5877, 3.8001, 21.0984)
Luminance	0.0380 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Indigo

#4B0082

ΔE00 2.38

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511381 #438113

analogous

#1A1381 #511381 #81137A

triadic

#511381 #815113 #138151

tetradic

#511381 #811A13 #438113 #137A81

square

#511381 #811A13 #438113 #137A81

split-complementary

#511381 #7A8113 #13811A

monochromatic

#11041B #300B4C #511381 #721BB6 #932EE0

Accessibility & contrast

On white

11.93

#511381 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.76

#511381 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511381

11.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511381	#FFFFFF	#000000	##FFFFFF
##511381	1.00	11.93	1.76	11.93
#FFFFFF	11.93	1.00	21.00	1.00
#000000	1.76	21.00	1.00	21.00
##FFFFFF	11.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003684

Deuteranopia (green-blind)

#00377F

Tritanopia (blue-blind)

#47324C

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #511381;
/* rgb */ color: rgb(81, 19, 129);
/* oklch */ color: oklch(35.8% 0.167 304.1);

Tailwind

colors: {
  custom: {
    50: '#875aa6',
    500: '#511381',
    950: '#000000',
  },
}

SCSS

$custom: #511381;
$custom-light: #875aa6;
$custom-dark: #000000;

JSON

{
  "hex": "#511381",
  "rgb": {
    "r": 81,
    "g": 19,
    "b": 129
  },
  "hsl": {
    "h": 273.818,
    "s": 74.324,
    "l": 29.02
  },
  "oklch": {
    "l": 0.35792,
    "c": 0.16712,
    "h": 304.1
  },
  "luminance": 0.038
}

Semantic roles & 50–950 ramp

primary

#511381

secondary

#70B63A

accent

#F13788

background

#F8F5FA

surface

#F0E9F4

border

#CBC5CE

text

#0C040F

muted

#7D797F

Preview Lab

Preview with #511381

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

Preview Lab → · Contrast checker → · Palette generator →