#663DC5#663DC5

#663DC5 is a mid, vivid violet. Relative luminance 0.102; OKLCH L 48.9% C 0.199 H 291.0°. Best body text is #FFFFFF at 6.91:1 contrast (WCAG AA passes).

Color values

HEX	#663DC5
RGB	rgb(102, 61, 197)
HSL	hsl(258, 54%, 51%)
HSV	hsv(258, 69%, 77%)
CMYK	cmyk(48.2%, 69%, 0%, 22.7%)
CIE-LAB	lab(38.19, 49.38, -64.76)
CIE-LCH	lch(38.19, 81.44, 307.33°)
OKLab	oklab(48.88% 0.0714 -0.1857)
OKLCH	oklch(48.88% 0.199 291)
XYZ	xyz(17.2234, 10.1928, 53.8724)
Luminance	0.1019 (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

#663DC5 #9CC53D

analogous

#3D58C5 #663DC5 #AA3DC5

triadic

#663DC5 #C5663D #3DC566

tetradic

#663DC5 #C53D58 #9CC53D #3DC5AA

square

#663DC5 #C53D58 #9CC53D #3DC5AA

split-complementary

#663DC5 #C5AA3D #58C53D

monochromatic

#351F68 #4D2D98 #663DC5 #8B6CD3 #B09BE1

Accessibility & contrast

On white

6.91

#663DC5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.04

#663DC5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #663DC5

6.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663DC5	#FFFFFF	#000000	##FFFFFF
##663DC5	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)

#005CC9

Deuteranopia (green-blind)

#0057C2

Tritanopia (blue-blind)

#475F7C

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #663dc5;
/* rgb */ color: rgb(102, 61, 197);
/* oklch */ color: oklch(48.9% 0.199 291.0);

Tailwind

colors: {
  custom: {
    50: '#9a76d8',
    500: '#663dc5',
    950: '#000000',
  },
}

SCSS

$custom: #663dc5;
$custom-light: #9a76d8;
$custom-dark: #000000;

JSON

{
  "hex": "#663dc5",
  "rgb": {
    "r": 102,
    "g": 61,
    "b": 197
  },
  "hsl": {
    "h": 258.088,
    "s": 53.968,
    "l": 50.588
  },
  "oklch": {
    "l": 0.48876,
    "c": 0.19892,
    "h": 291
  },
  "luminance": 0.10193
}

Semantic roles & 50–950 ramp

primary

#663DC5

secondary

#BBCD91

accent

#DD4AB1

background

#FAF7FD

surface

#F3EDFA

border

#CDC8D3

text

#0F0915

muted

#7F7B83

Preview Lab

Preview with #663DC5

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

Preview Lab → · Contrast checker → · Palette generator →