#663CC7#663CC7

#663CC7 is a mid, highly saturated violet. Relative luminance 0.102; OKLCH L 48.9% C 0.202 H 290.8°. Best body text is #FFFFFF at 6.92:1 contrast (WCAG AA passes).

Color values

HEX	#663CC7
RGB	rgb(102, 60, 199)
HSL	hsl(258, 55%, 51%)
HSV	hsv(258, 70%, 78%)
CMYK	cmyk(48.7%, 69.8%, 0%, 22%)
CIE-LAB	lab(38.16, 50.45, -65.97)
CIE-LCH	lch(38.16, 83.05, 307.41°)
OKLab	oklab(48.91% 0.072 -0.1892)
OKLCH	oklch(48.91% 0.202 290.8)
XYZ	xyz(17.4012, 10.1793, 55.0697)
Luminance	0.1018 (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

#663CC7 #9DC73C

analogous

#3C58C7 #663CC7 #AB3CC7

triadic

#663CC7 #C7663C #3CC766

tetradic

#663CC7 #C73C58 #9DC73C #3CC7AB

square

#663CC7 #C73C58 #9DC73C #3CC7AB

split-complementary

#663CC7 #C7AB3C #58C73C

monochromatic

#351E6A #4D2C9A #663CC7 #8B6CD5 #B19BE2

Accessibility & contrast

On white

6.92

#663CC7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.04

#663CC7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #663CC7

6.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663CC7	#FFFFFF	#000000	##FFFFFF
##663CC7	1.00	6.92	3.04	6.92
#FFFFFF	6.92	1.00	21.00	1.00
#000000	3.04	21.00	1.00	21.00
##FFFFFF	6.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005CCB

Deuteranopia (green-blind)

#0057C4

Tritanopia (blue-blind)

#46607D

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #663cc7;
/* rgb */ color: rgb(102, 60, 199);
/* oklch */ color: oklch(48.9% 0.202 290.8);

Tailwind

colors: {
  custom: {
    50: '#9a75d9',
    500: '#663cc7',
    950: '#000000',
  },
}

SCSS

$custom: #663cc7;
$custom-light: #9a75d9;
$custom-dark: #000000;

JSON

{
  "hex": "#663cc7",
  "rgb": {
    "r": 102,
    "g": 60,
    "b": 199
  },
  "hsl": {
    "h": 258.129,
    "s": 55.378,
    "l": 50.784
  },
  "oklch": {
    "l": 0.4891,
    "c": 0.20242,
    "h": 290.8
  },
  "luminance": 0.1018
}

Semantic roles & 50–950 ramp

primary

#663CC7

secondary

#BCCE91

accent

#DF49B1

background

#FAF7FD

surface

#F3EDFB

border

#CDC8D4

text

#0F0815

muted

#7F7B83

Preview Lab

Preview with #663CC7

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

Preview Lab → · Contrast checker → · Palette generator →