#663CC5#663CC5

#663CC5 is a mid, highly saturated violet. Relative luminance 0.101; OKLCH L 48.7% C 0.200 H 291.2°. Best body text is #FFFFFF at 6.96:1 contrast (WCAG AA passes).

Color values

HEX	#663CC5
RGB	rgb(102, 60, 197)
HSL	hsl(258, 54%, 50%)
HSV	hsv(258, 70%, 77%)
CMYK	cmyk(48.2%, 69.5%, 0%, 22.7%)
CIE-LAB	lab(38.00, 49.90, -65.07)
CIE-LCH	lch(38.00, 82.00, 307.48°)
OKLab	oklab(48.74% 0.0723 -0.1866)
OKLCH	oklch(48.74% 0.2 291.2)
XYZ	xyz(17.1705, 10.0871, 53.8548)
Luminance	0.1009 (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

#663CC5 #9BC53C

analogous

#3C56C5 #663CC5 #AA3CC5

triadic

#663CC5 #C5663C #3CC566

tetradic

#663CC5 #C53C56 #9BC53C #3CC5AA

square

#663CC5 #C53C56 #9BC53C #3CC5AA

split-complementary

#663CC5 #C5AA3C #56C53C

monochromatic

#351F68 #4D2D97 #663CC5 #8B6BD3 #B09AE1

Accessibility & contrast

On white

6.96

#663CC5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.02

#663CC5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #663CC5

6.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663CC5	#FFFFFF	#000000	##FFFFFF
##663CC5	1.00	6.96	3.02	6.96
#FFFFFF	6.96	1.00	21.00	1.00
#000000	3.02	21.00	1.00	21.00
##FFFFFF	6.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005CC9

Deuteranopia (green-blind)

#0056C2

Tritanopia (blue-blind)

#475F7C

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #663cc5;
/* rgb */ color: rgb(102, 60, 197);
/* oklch */ color: oklch(48.7% 0.200 291.2);

Tailwind

colors: {
  custom: {
    50: '#9a75d8',
    500: '#663cc5',
    950: '#000000',
  },
}

SCSS

$custom: #663cc5;
$custom-light: #9a75d8;
$custom-dark: #000000;

JSON

{
  "hex": "#663cc5",
  "rgb": {
    "r": 102,
    "g": 60,
    "b": 197
  },
  "hsl": {
    "h": 258.394,
    "s": 54.15,
    "l": 50.392
  },
  "oklch": {
    "l": 0.48742,
    "c": 0.2001,
    "h": 291.2
  },
  "luminance": 0.10088
}

Semantic roles & 50–950 ramp

primary

#663CC5

secondary

#BACD90

accent

#DE4AB0

background

#FAF7FD

surface

#F3EDFA

border

#CDC8D3

text

#0F0815

muted

#7F7B83

Preview Lab

Preview with #663CC5

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

Preview Lab → · Contrast checker → · Palette generator →