#663CB8#663CB8

#663CB8 is a mid, vivid violet. Relative luminance 0.095; OKLCH L 47.7% C 0.185 H 293.8°. Best body text is #FFFFFF at 7.23:1 contrast (WCAG AA passes).

Color values

HEX	#663CB8
RGB	rgb(102, 60, 184)
HSL	hsl(260, 51%, 48%)
HSV	hsv(260, 67%, 72%)
CMYK	cmyk(44.6%, 67.4%, 0%, 27.8%)
CIE-LAB	lab(36.96, 46.32, -59.13)
CIE-LCH	lch(36.96, 75.12, 308.07°)
OKLab	oklab(47.68% 0.0744 -0.1691)
OKLCH	oklch(47.68% 0.185 293.8)
XYZ	xyz(15.7447, 9.5167, 46.3455)
Luminance	0.0952 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Bluey Purple

#6241C7

ΔE00 2.71

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#663CB8 #8EB83C

analogous

#3C50B8 #663CB8 #A43CB8

triadic

#663CB8 #B8663C #3CB866

tetradic

#663CB8 #B83C50 #8EB83C #3CB8A4

square

#663CB8 #B83C50 #8EB83C #3CB8A4

split-complementary

#663CB8 #B8A43C #50B83C

monochromatic

#331E5C #4C2D8A #663CB8 #8865CD #AB93DC

Accessibility & contrast

On white

7.23

#663CB8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.90

#663CB8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663CB8

7.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663CB8	#FFFFFF	#000000	##FFFFFF
##663CB8	1.00	7.23	2.90	7.23
#FFFFFF	7.23	1.00	21.00	1.00
#000000	2.90	21.00	1.00	21.00
##FFFFFF	7.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058BC

Deuteranopia (green-blind)

#0055B5

Tritanopia (blue-blind)

#4F5A75

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #663cb8;
/* rgb */ color: rgb(102, 60, 184);
/* oklch */ color: oklch(47.7% 0.185 293.8);

Tailwind

colors: {
  custom: {
    50: '#9875ce',
    500: '#663cb8',
    950: '#000000',
  },
}

SCSS

$custom: #663cb8;
$custom-light: #9875ce;
$custom-dark: #000000;

JSON

{
  "hex": "#663cb8",
  "rgb": {
    "r": 102,
    "g": 60,
    "b": 184
  },
  "hsl": {
    "h": 260.323,
    "s": 50.82,
    "l": 47.843
  },
  "oklch": {
    "l": 0.47677,
    "c": 0.18478,
    "h": 293.8
  },
  "luminance": 0.09517
}

Semantic roles & 50–950 ramp

primary

#663CB8

secondary

#B2C789

accent

#DA4DAB

background

#F9F7FC

surface

#F2EDF9

border

#CCC8D2

text

#0E0814

muted

#7E7B82

Preview Lab

Preview with #663CB8

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

Preview Lab → · Contrast checker → · Palette generator →