#663CB1#663CB1

#663CB1 is a mid, vivid violet. Relative luminance 0.092; OKLCH L 47.1% C 0.176 H 295.3°. Best body text is #FFFFFF at 7.38:1 contrast (WCAG AA passes).

Color values

HEX	#663CB1
RGB	rgb(102, 60, 177)
HSL	hsl(262, 49%, 46%)
HSV	hsv(262, 66%, 69%)
CMYK	cmyk(42.4%, 66.1%, 0%, 30.6%)
CIE-LAB	lab(36.42, 44.41, -55.86)
CIE-LCH	lch(36.42, 71.37, 308.48°)
OKLab	oklab(47.12% 0.0753 -0.1595)
OKLCH	oklch(47.12% 0.176 295.3)
XYZ	xyz(15.0291, 9.2305, 42.5763)
Luminance	0.0923 (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

#663CB1 #87B13C

analogous

#3C4DB1 #663CB1 #A13CB1

triadic

#663CB1 #B1663C #3CB166

tetradic

#663CB1 #B13C4D #87B13C #3CB1A1

square

#663CB1 #B13C4D #87B13C #3CB1A1

split-complementary

#663CB1 #B1A13C #4DB13C

monochromatic

#311D56 #4C2D83 #663CB1 #8661C9 #A98FD9

Accessibility & contrast

On white

7.38

#663CB1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.85

#663CB1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663CB1

7.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663CB1	#FFFFFF	#000000	##FFFFFF
##663CB1	1.00	7.38	2.85	7.38
#FFFFFF	7.38	1.00	21.00	1.00
#000000	2.85	21.00	1.00	21.00
##FFFFFF	7.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057B5

Deuteranopia (green-blind)

#0054AF

Tritanopia (blue-blind)

#525871

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #663cb1;
/* rgb */ color: rgb(102, 60, 177);
/* oklch */ color: oklch(47.1% 0.176 295.3);

Tailwind

colors: {
  custom: {
    50: '#9874c9',
    500: '#663cb1',
    950: '#000000',
  },
}

SCSS

$custom: #663cb1;
$custom-light: #9874c9;
$custom-dark: #000000;

JSON

{
  "hex": "#663cb1",
  "rgb": {
    "r": 102,
    "g": 60,
    "b": 177
  },
  "hsl": {
    "h": 261.538,
    "s": 49.367,
    "l": 46.471
  },
  "oklch": {
    "l": 0.47122,
    "c": 0.17642,
    "h": 295.3
  },
  "luminance": 0.09231
}

Semantic roles & 50–950 ramp

primary

#663CB1

secondary

#ADC485

accent

#D94FA7

background

#F9F7FC

surface

#F2EDF8

border

#CCC8D1

text

#0E0813

muted

#7E7B82

Preview Lab

Preview with #663CB1

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

Preview Lab → · Contrast checker → · Palette generator →