#663CB9#663CB9

#663CB9 is a mid, vivid violet. Relative luminance 0.096; OKLCH L 47.8% C 0.186 H 293.5°. Best body text is #FFFFFF at 7.21:1 contrast (WCAG AA passes).

Color values

HEX	#663CB9
RGB	rgb(102, 60, 185)
HSL	hsl(260, 51%, 48%)
HSV	hsv(260, 68%, 73%)
CMYK	cmyk(44.9%, 67.6%, 0%, 27.5%)
CIE-LAB	lab(37.04, 46.60, -59.60)
CIE-LCH	lch(37.04, 75.65, 308.02°)
OKLab	oklab(47.76% 0.0743 -0.1705)
OKLCH	oklch(47.76% 0.186 293.5)
XYZ	xyz(15.8499, 9.5588, 46.8995)
Luminance	0.0956 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Bluey Purple

#6241C7

ΔE00 2.58

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#663CB9 #8FB93C

analogous

#3C50B9 #663CB9 #A43CB9

triadic

#663CB9 #B9663C #3CB966

tetradic

#663CB9 #B93C50 #8FB93C #3CB9A4

square

#663CB9 #B93C50 #8FB93C #3CB9A4

split-complementary

#663CB9 #B9A43C #50B93C

monochromatic

#331E5D #4D2D8B #663CB9 #8865CD #AC93DC

Accessibility & contrast

On white

7.21

#663CB9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.91

#663CB9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663CB9

7.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663CB9	#FFFFFF	#000000	##FFFFFF
##663CB9	1.00	7.21	2.91	7.21
#FFFFFF	7.21	1.00	21.00	1.00
#000000	2.91	21.00	1.00	21.00
##FFFFFF	7.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0059BD

Deuteranopia (green-blind)

#0055B6

Tritanopia (blue-blind)

#4E5A75

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #663cb9;
/* rgb */ color: rgb(102, 60, 185);
/* oklch */ color: oklch(47.8% 0.186 293.5);

Tailwind

colors: {
  custom: {
    50: '#9875cf',
    500: '#663cb9',
    950: '#000000',
  },
}

SCSS

$custom: #663cb9;
$custom-light: #9875cf;
$custom-dark: #000000;

JSON

{
  "hex": "#663cb9",
  "rgb": {
    "r": 102,
    "g": 60,
    "b": 185
  },
  "hsl": {
    "h": 260.16,
    "s": 51.02,
    "l": 48.039
  },
  "oklch": {
    "l": 0.47757,
    "c": 0.18597,
    "h": 293.5
  },
  "luminance": 0.09559
}

Semantic roles & 50–950 ramp

primary

#663CB9

secondary

#B3C789

accent

#DA4DAB

background

#F9F7FC

surface

#F2EDF9

border

#CCC8D2

text

#0E0814

muted

#7E7B82

Preview Lab

Preview with #663CB9

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

Preview Lab → · Contrast checker → · Palette generator →