#663BB2#663BB2

#663BB2 is a mid, vivid violet. Relative luminance 0.092; OKLCH L 47.1% C 0.179 H 295.2°. Best body text is #FFFFFF at 7.41:1 contrast (WCAG AA passes).

Color values

HEX	#663BB2
RGB	rgb(102, 59, 178)
HSL	hsl(262, 50%, 46%)
HSV	hsv(262, 67%, 70%)
CMYK	cmyk(42.7%, 66.9%, 0%, 30.2%)
CIE-LAB	lab(36.30, 45.22, -56.65)
CIE-LCH	lch(36.30, 72.49, 308.60°)
OKLab	oklab(47.06% 0.0763 -0.1618)
OKLCH	oklch(47.06% 0.179 295.2)
XYZ	xyz(15.0772, 9.1667, 43.0858)
Luminance	0.0917 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Bluey Purple

#6241C7

ΔE00 3.63

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#663BB2 #87B23B

analogous

#3B4BB2 #663BB2 #A23BB2

triadic

#663BB2 #B2663B #3BB266

tetradic

#663BB2 #B23B4B #87B23B #3BB2A2

square

#663BB2 #B23B4B #87B23B #3BB2A2

split-complementary

#663BB2 #B2A23B #4BB23B

monochromatic

#311D56 #4C2C84 #663BB2 #8660CA #A98EDA

Accessibility & contrast

On white

7.41

#663BB2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.83

#663BB2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663BB2

7.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663BB2	#FFFFFF	#000000	##FFFFFF
##663BB2	1.00	7.41	2.83	7.41
#FFFFFF	7.41	1.00	21.00	1.00
#000000	2.83	21.00	1.00	21.00
##FFFFFF	7.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056B6

Deuteranopia (green-blind)

#0054B0

Tritanopia (blue-blind)

#525771

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #663bb2;
/* rgb */ color: rgb(102, 59, 178);
/* oklch */ color: oklch(47.1% 0.179 295.2);

Tailwind

colors: {
  custom: {
    50: '#9874ca',
    500: '#663bb2',
    950: '#000000',
  },
}

SCSS

$custom: #663bb2;
$custom-light: #9874ca;
$custom-dark: #000000;

JSON

{
  "hex": "#663bb2",
  "rgb": {
    "r": 102,
    "g": 59,
    "b": 178
  },
  "hsl": {
    "h": 261.681,
    "s": 50.211,
    "l": 46.471
  },
  "oklch": {
    "l": 0.47059,
    "c": 0.17892,
    "h": 295.2
  },
  "luminance": 0.09167
}

Semantic roles & 50–950 ramp

primary

#663BB2

secondary

#ADC485

accent

#DA4EA7

background

#F9F7FC

surface

#F2EDF8

border

#CCC8D1

text

#0E0813

muted

#7E7B82

Preview Lab

Preview with #663BB2

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

Preview Lab → · Contrast checker → · Palette generator →