#511E7B#511E7B

#511E7B is a dark, vivid violet. Relative luminance 0.041; OKLCH L 36.4% C 0.149 H 305.0°. Best body text is #FFFFFF at 11.53:1 contrast (WCAG AA passes).

Color values

HEX	#511E7B
RGB	rgb(81, 30, 123)
HSL	hsl(273, 61%, 30%)
HSV	hsv(273, 76%, 48%)
CMYK	cmyk(34.1%, 75.6%, 0%, 51.8%)
CIE-LAB	lab(24.03, 41.29, -43.02)
CIE-LCH	lch(24.03, 59.63, 313.82°)
OKLab	oklab(36.35% 0.0856 -0.1224)
OKLCH	oklch(36.35% 0.149 305)
XYZ	xyz(7.4320, 4.1080, 19.1364)
Luminance	0.0411 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Indigo

#4B0082

ΔE00 4.42

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511E7B #487B1E

analogous

#221E7B #511E7B #7B1E77

triadic

#511E7B #7B511E #1E7B51

tetradic

#511E7B #7B221E #487B1E #1E777B

square

#511E7B #7B221E #487B1E #1E777B

split-complementary

#511E7B #777B1E #1E7B22

monochromatic

#100619 #31124A #511E7B #712AAC #9142D1

Accessibility & contrast

On white

11.53

#511E7B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.82

#511E7B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511E7B

11.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511E7B	#FFFFFF	#000000	##FFFFFF
##511E7B	1.00	11.53	1.82	11.53
#FFFFFF	11.53	1.00	21.00	1.00
#000000	1.82	21.00	1.00	21.00
##FFFFFF	11.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00387E

Deuteranopia (green-blind)

#003979

Tritanopia (blue-blind)

#49344B

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #511e7b;
/* rgb */ color: rgb(81, 30, 123);
/* oklch */ color: oklch(36.4% 0.149 305.0);

Tailwind

colors: {
  custom: {
    50: '#865fa2',
    500: '#511e7b',
    950: '#000000',
  },
}

SCSS

$custom: #511e7b;
$custom-light: #865fa2;
$custom-dark: #000000;

JSON

{
  "hex": "#511e7b",
  "rgb": {
    "r": 81,
    "g": 30,
    "b": 123
  },
  "hsl": {
    "h": 272.903,
    "s": 60.784,
    "l": 30
  },
  "oklch": {
    "l": 0.3635,
    "c": 0.14935,
    "h": 305
  },
  "luminance": 0.04108
}

Semantic roles & 50–950 ramp

primary

#511E7B

secondary

#75AE46

accent

#E4448C

background

#F8F5FA

surface

#F0E9F3

border

#CBC5CD

text

#0C050F

muted

#7D797F

Preview Lab

Preview with #511E7B

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

Preview Lab → · Contrast checker → · Palette generator →