#511CB4#511CB4

#511CB4 is a dark, highly saturated violet. Relative luminance 0.059; OKLCH L 41.5% C 0.212 H 289.1°. Best body text is #FFFFFF at 9.66:1 contrast (WCAG AA passes).

Color values

HEX	#511CB4
RGB	rgb(81, 28, 180)
HSL	hsl(261, 73%, 41%)
HSV	hsv(261, 84%, 71%)
CMYK	cmyk(55%, 84.4%, 0%, 29.4%)
CIE-LAB	lab(29.09, 56.77, -69.75)
CIE-LCH	lch(29.09, 89.93, 309.15°)
OKLab	oklab(41.5% 0.0694 -0.2007)
OKLCH	oklch(41.5% 0.212 289.1)
XYZ	xyz(12.0444, 5.8745, 43.6704)
Luminance	0.0587 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511CB4 #7FB41C

analogous

#1C33B4 #511CB4 #9D1CB4

triadic

#511CB4 #B4511C #1CB451

tetradic

#511CB4 #B41C33 #7FB41C #1CB49D

square

#511CB4 #B41C33 #7FB41C #1CB49D

split-complementary

#511CB4 #B49D1C #33B41C

monochromatic

#210C4A #39147F #511CB4 #6C2FDF #9164E7

Accessibility & contrast

On white

9.66

#511CB4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.17

#511CB4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511CB4

9.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511CB4	#FFFFFF	#000000	##FFFFFF
##511CB4	1.00	9.66	2.17	9.66
#FFFFFF	9.66	1.00	21.00	1.00
#000000	2.17	21.00	1.00	21.00
##FFFFFF	9.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0047B8

Deuteranopia (green-blind)

#0041B1

Tritanopia (blue-blind)

#284C6B

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #511cb4;
/* rgb */ color: rgb(81, 28, 180);
/* oklch */ color: oklch(41.5% 0.212 289.1);

Tailwind

colors: {
  custom: {
    50: '#8e62cc',
    500: '#511cb4',
    950: '#000000',
  },
}

SCSS

$custom: #511cb4;
$custom-light: #8e62cc;
$custom-dark: #000000;

JSON

{
  "hex": "#511cb4",
  "rgb": {
    "r": 81,
    "g": 28,
    "b": 180
  },
  "hsl": {
    "h": 260.921,
    "s": 73.077,
    "l": 40.784
  },
  "oklch": {
    "l": 0.41502,
    "c": 0.21234,
    "h": 289.1
  },
  "luminance": 0.05875
}

Semantic roles & 50–950 ramp

primary

#511CB4

secondary

#A6CC60

accent

#F038B0

background

#F9F6FC

surface

#F2EBF9

border

#CCC6D2

text

#0E0514

muted

#7E7A82

Preview Lab

Preview with #511CB4

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

Preview Lab → · Contrast checker → · Palette generator →