#663DC4#663DC4

#663DC4 is a mid, vivid violet. Relative luminance 0.101; OKLCH L 48.8% C 0.198 H 291.2°. Best body text is #FFFFFF at 6.93:1 contrast (WCAG AA passes).

Color values

HEX	#663DC4
RGB	rgb(102, 61, 196)
HSL	hsl(258, 53%, 50%)
HSV	hsv(258, 69%, 77%)
CMYK	cmyk(48%, 68.9%, 0%, 23.1%)
CIE-LAB	lab(38.11, 49.10, -64.31)
CIE-LCH	lch(38.11, 80.91, 307.36°)
OKLab	oklab(48.79% 0.0716 -0.1843)
OKLCH	oklch(48.79% 0.198 291.2)
XYZ	xyz(17.1092, 10.1472, 53.2710)
Luminance	0.1015 (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

#663DC4 #9BC43D

analogous

#3D57C4 #663DC4 #A93DC4

triadic

#663DC4 #C4663D #3DC466

tetradic

#663DC4 #C43D57 #9BC43D #3DC4A9

square

#663DC4 #C43D57 #9BC43D #3DC4A9

split-complementary

#663DC4 #C4A93D #57C43D

monochromatic

#351F67 #4D2E96 #663DC4 #8B6CD2 #B09BE1

Accessibility & contrast

On white

6.93

#663DC4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.03

#663DC4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #663DC4

6.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663DC4	#FFFFFF	#000000	##FFFFFF
##663DC4	1.00	6.93	3.03	6.93
#FFFFFF	6.93	1.00	21.00	1.00
#000000	3.03	21.00	1.00	21.00
##FFFFFF	6.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005CC8

Deuteranopia (green-blind)

#0057C1

Tritanopia (blue-blind)

#485F7C

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #663dc4;
/* rgb */ color: rgb(102, 61, 196);
/* oklch */ color: oklch(48.8% 0.198 291.2);

Tailwind

colors: {
  custom: {
    50: '#9a76d7',
    500: '#663dc4',
    950: '#000000',
  },
}

SCSS

$custom: #663dc4;
$custom-light: #9a76d7;
$custom-dark: #000000;

JSON

{
  "hex": "#663dc4",
  "rgb": {
    "r": 102,
    "g": 61,
    "b": 196
  },
  "hsl": {
    "h": 258.222,
    "s": 53.36,
    "l": 50.392
  },
  "oklch": {
    "l": 0.48793,
    "c": 0.19774,
    "h": 291.2
  },
  "luminance": 0.10148
}

Semantic roles & 50–950 ramp

primary

#663DC4

secondary

#BACD90

accent

#DD4BB1

background

#FAF7FD

surface

#F3EDFA

border

#CDC8D3

text

#0F0914

muted

#7F7B83

Preview Lab

Preview with #663DC4

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

Preview Lab → · Contrast checker → · Palette generator →