#511981#511981

#511981 is a dark, vivid violet. Relative luminance 0.040; OKLCH L 36.3% C 0.161 H 303.4°. Best body text is #FFFFFF at 11.63:1 contrast (WCAG AA passes).

Color values

HEX	#511981
RGB	rgb(81, 25, 129)
HSL	hsl(272, 68%, 30%)
HSV	hsv(272, 81%, 51%)
CMYK	cmyk(37.2%, 80.6%, 0%, 49.4%)
CIE-LAB	lab(23.77, 44.95, -47.24)
CIE-LCH	lch(23.77, 65.21, 313.58°)
OKLab	oklab(36.33% 0.0889 -0.1347)
OKLCH	oklch(36.33% 0.161 303.4)
XYZ	xyz(7.7025, 4.0296, 21.1366)
Luminance	0.0403 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Indigo

#4B0082

ΔE00 3.20

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511981 #498119

analogous

#1D1981 #511981 #81197D

triadic

#511981 #815119 #198151

tetradic

#511981 #811D19 #498119 #197D81

square

#511981 #811D19 #498119 #197D81

split-complementary

#511981 #7D8119 #19811D

monochromatic

#11051A #310F4E #511981 #7123B4 #903BD9

Accessibility & contrast

On white

11.63

#511981 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#511981 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511981

11.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511981	#FFFFFF	#000000	##FFFFFF
##511981	1.00	11.63	1.81	11.63
#FFFFFF	11.63	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003784

Deuteranopia (green-blind)

#00387F

Tritanopia (blue-blind)

#47354D

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #511981;
/* rgb */ color: rgb(81, 25, 129);
/* oklch */ color: oklch(36.3% 0.161 303.4);

Tailwind

colors: {
  custom: {
    50: '#875da6',
    500: '#511981',
    950: '#000000',
  },
}

SCSS

$custom: #511981;
$custom-light: #875da6;
$custom-dark: #000000;

JSON

{
  "hex": "#511981",
  "rgb": {
    "r": 81,
    "g": 25,
    "b": 129
  },
  "hsl": {
    "h": 272.308,
    "s": 67.532,
    "l": 30.196
  },
  "oklch": {
    "l": 0.36327,
    "c": 0.16144,
    "h": 303.4
  },
  "luminance": 0.0403
}

Semantic roles & 50–950 ramp

primary

#511981

secondary

#76B541

accent

#EA3D8D

background

#F8F5FA

surface

#F0E9F4

border

#CBC5CE

text

#0C040F

muted

#7D797F

Preview Lab

Preview with #511981

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

Preview Lab → · Contrast checker → · Palette generator →