#663FBE#663FBE

#663FBE is a mid, vivid violet. Relative luminance 0.101; OKLCH L 48.6% C 0.188 H 292.0°. Best body text is #FFFFFF at 6.96:1 contrast (WCAG AA passes).

Color values

HEX	#663FBE
RGB	rgb(102, 63, 190)
HSL	hsl(258, 50%, 50%)
HSV	hsv(258, 67%, 75%)
CMYK	cmyk(46.3%, 66.8%, 0%, 25.5%)
CIE-LAB	lab(38.02, 46.37, -60.95)
CIE-LCH	lch(38.02, 76.58, 307.27°)
OKLab	oklab(48.58% 0.0705 -0.1745)
OKLCH	oklch(48.58% 0.188 292)
XYZ	xyz(16.5487, 10.0969, 49.7822)
Luminance	0.1010 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Bluey Purple

#6241C7

ΔE00 1.62

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#663FBE #97BE3F

analogous

#3F58BE #663FBE #A63FBE

triadic

#663FBE #BE663F #3FBE66

tetradic

#663FBE #BE3F58 #97BE3F #3FBEA6

square

#663FBE #BE3F58 #97BE3F #3FBEA6

split-complementary

#663FBE #BEA63F #58BE3F

monochromatic

#352162 #4D3090 #663FBE #8A6CCE #AF9ADD

Accessibility & contrast

On white

6.96

#663FBE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.02

#663FBE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #663FBE

6.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663FBE	#FFFFFF	#000000	##FFFFFF
##663FBE	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)

#005BC2

Deuteranopia (green-blind)

#0057BB

Tritanopia (blue-blind)

#4B5E79

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #663fbe;
/* rgb */ color: rgb(102, 63, 190);
/* oklch */ color: oklch(48.6% 0.188 292.0);

Tailwind

colors: {
  custom: {
    50: '#9977d2',
    500: '#663fbe',
    950: '#000000',
  },
}

SCSS

$custom: #663fbe;
$custom-light: #9977d2;
$custom-dark: #000000;

JSON

{
  "hex": "#663fbe",
  "rgb": {
    "r": 102,
    "g": 63,
    "b": 190
  },
  "hsl": {
    "h": 258.425,
    "s": 50.198,
    "l": 49.608
  },
  "oklch": {
    "l": 0.48581,
    "c": 0.18817,
    "h": 292
  },
  "luminance": 0.10097
}

Semantic roles & 50–950 ramp

primary

#663FBE

secondary

#B8C98F

accent

#DA4EAF

background

#F9F7FD

surface

#F2EDFA

border

#CCC8D3

text

#0F0914

muted

#7E7B83

Preview Lab

Preview with #663FBE

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

Preview Lab → · Contrast checker → · Palette generator →