#663FC0#663FC0

#663FC0 is a mid, vivid violet. Relative luminance 0.102; OKLCH L 48.7% C 0.191 H 291.6°. Best body text is #FFFFFF at 6.91:1 contrast (WCAG AA passes).

Color values

HEX	#663FC0
RGB	rgb(102, 63, 192)
HSL	hsl(258, 51%, 50%)
HSV	hsv(258, 67%, 75%)
CMYK	cmyk(46.9%, 67.2%, 0%, 24.7%)
CIE-LAB	lab(38.17, 46.93, -61.86)
CIE-LCH	lch(38.17, 77.65, 307.18°)
OKLab	oklab(48.74% 0.0702 -0.1772)
OKLCH	oklch(48.74% 0.191 291.6)
XYZ	xyz(16.7688, 10.1850, 50.9413)
Luminance	0.1019 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Bluey Purple

#6241C7

ΔE00 1.37

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#663FC0 #99C03F

analogous

#3F58C0 #663FC0 #A73FC0

triadic

#663FC0 #C0663F #3FC066

tetradic

#663FC0 #C03F58 #99C03F #3FC0A7

square

#663FC0 #C03F58 #99C03F #3FC0A7

split-complementary

#663FC0 #C0A73F #58C03F

monochromatic

#352164 #4E3092 #663FC0 #8B6DCF #AF9BDE

Accessibility & contrast

On white

6.91

#663FC0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.04

#663FC0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #663FC0

6.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663FC0	#FFFFFF	#000000	##FFFFFF
##663FC0	1.00	6.91	3.04	6.91
#FFFFFF	6.91	1.00	21.00	1.00
#000000	3.04	21.00	1.00	21.00
##FFFFFF	6.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005CC4

Deuteranopia (green-blind)

#0057BD

Tritanopia (blue-blind)

#4A5F7A

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #663fc0;
/* rgb */ color: rgb(102, 63, 192);
/* oklch */ color: oklch(48.7% 0.191 291.6);

Tailwind

colors: {
  custom: {
    50: '#9977d4',
    500: '#663fc0',
    950: '#000000',
  },
}

SCSS

$custom: #663fc0;
$custom-light: #9977d4;
$custom-dark: #000000;

JSON

{
  "hex": "#663fc0",
  "rgb": {
    "r": 102,
    "g": 63,
    "b": 192
  },
  "hsl": {
    "h": 258.14,
    "s": 50.588,
    "l": 50
  },
  "oklch": {
    "l": 0.48742,
    "c": 0.19057,
    "h": 291.6
  },
  "luminance": 0.10186
}

Semantic roles & 50–950 ramp

primary

#663FC0

secondary

#B9CA91

accent

#DA4EB0

background

#F9F7FD

surface

#F2EDFA

border

#CCC8D3

text

#0F0914

muted

#7E7B83

Preview Lab

Preview with #663FC0

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

Preview Lab → · Contrast checker → · Palette generator →