#511CA9#511CA9

#511CA9 is a dark, highly saturated violet. Relative luminance 0.054; OKLCH L 40.4% C 0.201 H 291.5°. Best body text is #FFFFFF at 10.05:1 contrast (WCAG AA passes).

Color values

HEX	#511CA9
RGB	rgb(81, 28, 169)
HSL	hsl(263, 72%, 39%)
HSV	hsv(263, 83%, 66%)
CMYK	cmyk(52.1%, 83.4%, 0%, 33.7%)
CIE-LAB	lab(27.96, 53.93, -65.01)
CIE-LCH	lch(27.96, 84.47, 309.67°)
OKLab	oklab(40.39% 0.0735 -0.1869)
OKLCH	oklch(40.39% 0.201 291.5)
XYZ	xyz(10.9680, 5.4440, 38.0013)
Luminance	0.0544 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511CA9 #74A91C

analogous

#1C2DA9 #511CA9 #971CA9

triadic

#511CA9 #A9511C #1CA951

tetradic

#511CA9 #A91C2D #74A91C #1CA997

square

#511CA9 #A91C2D #74A91C #1CA997

split-complementary

#511CA9 #A9971C #2DA91C

monochromatic

#1F0B40 #381374 #511CA9 #6B27DB #8F5BE4

Accessibility & contrast

On white

10.05

#511CA9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.09

#511CA9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511CA9

10.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511CA9	#FFFFFF	#000000	##FFFFFF
##511CA9	1.00	10.05	2.09	10.05
#FFFFFF	10.05	1.00	21.00	1.00
#000000	2.09	21.00	1.00	21.00
##FFFFFF	10.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0044AD

Deuteranopia (green-blind)

#003FA7

Tritanopia (blue-blind)

#324765

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #511ca9;
/* rgb */ color: rgb(81, 28, 169);
/* oklch */ color: oklch(40.4% 0.201 291.5);

Tailwind

colors: {
  custom: {
    50: '#8c61c4',
    500: '#511ca9',
    950: '#000000',
  },
}

SCSS

$custom: #511ca9;
$custom-light: #8c61c4;
$custom-dark: #000000;

JSON

{
  "hex": "#511ca9",
  "rgb": {
    "r": 81,
    "g": 28,
    "b": 169
  },
  "hsl": {
    "h": 262.553,
    "s": 71.574,
    "l": 38.627
  },
  "oklch": {
    "l": 0.40389,
    "c": 0.2008,
    "h": 291.5
  },
  "luminance": 0.05444
}

Semantic roles & 50–950 ramp

primary

#511CA9

secondary

#9EC859

accent

#EE39AA

background

#F9F6FC

surface

#F1EBF8

border

#CBC6D1

text

#0D0513

muted

#7E7A82

Preview Lab

Preview with #511CA9

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

Preview Lab → · Contrast checker → · Palette generator →