#663CA6#663CA6

#663CA6 is a mid, vivid violet. Relative luminance 0.088; OKLCH L 46.3% C 0.163 H 297.9°. Best body text is #FFFFFF at 7.60:1 contrast (WCAG AA passes).

Color values

HEX	#663CA6
RGB	rgb(102, 60, 166)
HSL	hsl(264, 47%, 44%)
HSV	hsv(264, 64%, 65%)
CMYK	cmyk(38.6%, 63.9%, 0%, 34.9%)
CIE-LAB	lab(35.61, 41.43, -50.62)
CIE-LCH	lch(35.61, 65.41, 309.30°)
OKLab	oklab(46.28% 0.0764 -0.1441)
OKLCH	oklch(46.28% 0.163 297.9)
XYZ	xyz(13.9765, 8.8095, 37.0330)
Luminance	0.0881 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#663CA6 #7CA63C

analogous

#3C47A6 #663CA6 #9B3CA6

triadic

#663CA6 #A6663C #3CA666

tetradic

#663CA6 #A63C47 #7CA63C #3CA69B

square

#663CA6 #A63C47 #7CA63C #3CA69B

split-complementary

#663CA6 #A69B3C #47A63C

monochromatic

#2F1C4C #4A2C79 #663CA6 #855BC4 #A688D4

Accessibility & contrast

On white

7.60

#663CA6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.76

#663CA6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663CA6

7.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663CA6	#FFFFFF	#000000	##FFFFFF
##663CA6	1.00	7.60	2.76	7.60
#FFFFFF	7.60	1.00	21.00	1.00
#000000	2.76	21.00	1.00	21.00
##FFFFFF	7.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054A9

Deuteranopia (green-blind)

#0353A4

Tritanopia (blue-blind)

#57546B

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #663ca6;
/* rgb */ color: rgb(102, 60, 166);
/* oklch */ color: oklch(46.3% 0.163 297.9);

Tailwind

colors: {
  custom: {
    50: '#9674c1',
    500: '#663ca6',
    950: '#000000',
  },
}

SCSS

$custom: #663ca6;
$custom-light: #9674c1;
$custom-dark: #000000;

JSON

{
  "hex": "#663ca6",
  "rgb": {
    "r": 102,
    "g": 60,
    "b": 166
  },
  "hsl": {
    "h": 263.774,
    "s": 46.903,
    "l": 44.314
  },
  "oklch": {
    "l": 0.46282,
    "c": 0.16311,
    "h": 297.9
  },
  "luminance": 0.0881
}

Semantic roles & 50–950 ramp

primary

#663CA6

secondary

#A5BE7F

accent

#D751A2

background

#F9F7FC

surface

#F2EDF8

border

#CCC8D1

text

#0E0812

muted

#7E7B81

Preview Lab

Preview with #663CA6

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

Preview Lab → · Contrast checker → · Palette generator →