#511580#511580

#511580 is a dark, vivid violet. Relative luminance 0.038; OKLCH L 35.9% C 0.164 H 304.3°. Best body text is #FFFFFF at 11.87:1 contrast (WCAG AA passes).

Color values

HEX	#511580
RGB	rgb(81, 21, 128)
HSL	hsl(274, 72%, 29%)
HSV	hsv(274, 84%, 50%)
CMYK	cmyk(36.7%, 83.6%, 0%, 49.8%)
CIE-LAB	lab(23.15, 46.25, -47.62)
CIE-LCH	lch(23.15, 66.38, 314.17°)
OKLab	oklab(35.87% 0.0925 -0.1358)
OKLCH	oklch(35.87% 0.164 304.3)
XYZ	xyz(7.5569, 3.8442, 20.7618)
Luminance	0.0384 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Indigo

#4B0082

ΔE00 2.68

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511580 #448015

analogous

#1C1580 #511580 #80157A

triadic

#511580 #805115 #158051

tetradic

#511580 #801C15 #448015 #157A80

square

#511580 #801C15 #448015 #157A80

split-complementary

#511580 #7A8015 #15801C

monochromatic

#11041A #300C4B #511580 #721EB5 #9232DD

Accessibility & contrast

On white

11.87

#511580 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.77

#511580 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511580

11.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511580	#FFFFFF	#000000	##FFFFFF
##511580	1.00	11.87	1.77	11.87
#FFFFFF	11.87	1.00	21.00	1.00
#000000	1.77	21.00	1.00	21.00
##FFFFFF	11.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003683

Deuteranopia (green-blind)

#00377E

Tritanopia (blue-blind)

#48324B

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #511580;
/* rgb */ color: rgb(81, 21, 128);
/* oklch */ color: oklch(35.9% 0.164 304.3);

Tailwind

colors: {
  custom: {
    50: '#875ba6',
    500: '#511580',
    950: '#000000',
  },
}

SCSS

$custom: #511580;
$custom-light: #875ba6;
$custom-dark: #000000;

JSON

{
  "hex": "#511580",
  "rgb": {
    "r": 81,
    "g": 21,
    "b": 128
  },
  "hsl": {
    "h": 273.645,
    "s": 71.812,
    "l": 29.216
  },
  "oklch": {
    "l": 0.35868,
    "c": 0.16434,
    "h": 304.3
  },
  "luminance": 0.03844
}

Semantic roles & 50–950 ramp

primary

#511580

secondary

#71B53C

accent

#EF3989

background

#F8F5FA

surface

#F0E9F4

border

#CBC5CE

text

#0C040F

muted

#7D797F

Preview Lab

Preview with #511580

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

Preview Lab → · Contrast checker → · Palette generator →