#663DC7#663DC7

#663DC7 is a mid, highly saturated violet. Relative luminance 0.103; OKLCH L 49.0% C 0.201 H 290.7°. Best body text is #FFFFFF at 6.87:1 contrast (WCAG AA passes).

Color values

HEX	#663DC7
RGB	rgb(102, 61, 199)
HSL	hsl(258, 55%, 51%)
HSV	hsv(258, 69%, 78%)
CMYK	cmyk(48.7%, 69.3%, 0%, 22%)
CIE-LAB	lab(38.35, 49.94, -65.66)
CIE-LCH	lch(38.35, 82.49, 307.25°)
OKLab	oklab(49.04% 0.071 -0.1883)
OKLCH	oklch(49.04% 0.201 290.7)
XYZ	xyz(17.4541, 10.2851, 55.0873)
Luminance	0.1029 (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

#663DC7 #9EC73D

analogous

#3D59C7 #663DC7 #AB3DC7

triadic

#663DC7 #C7663D #3DC766

tetradic

#663DC7 #C73D59 #9EC73D #3DC7AB

square

#663DC7 #C73D59 #9EC73D #3DC7AB

split-complementary

#663DC7 #C7AB3D #59C73D

monochromatic

#351F6B #4D2D9A #663DC7 #8B6CD5 #B19CE2

Accessibility & contrast

On white

6.87

#663DC7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.06

#663DC7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #663DC7

6.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663DC7	#FFFFFF	#000000	##FFFFFF
##663DC7	1.00	6.87	3.06	6.87
#FFFFFF	6.87	1.00	21.00	1.00
#000000	3.06	21.00	1.00	21.00
##FFFFFF	6.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005DCB

Deuteranopia (green-blind)

#0057C4

Tritanopia (blue-blind)

#46607D

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #663dc7;
/* rgb */ color: rgb(102, 61, 199);
/* oklch */ color: oklch(49.0% 0.201 290.7);

Tailwind

colors: {
  custom: {
    50: '#9a76d9',
    500: '#663dc7',
    950: '#000000',
  },
}

SCSS

$custom: #663dc7;
$custom-light: #9a76d9;
$custom-dark: #000000;

JSON

{
  "hex": "#663dc7",
  "rgb": {
    "r": 102,
    "g": 61,
    "b": 199
  },
  "hsl": {
    "h": 257.826,
    "s": 55.2,
    "l": 50.98
  },
  "oklch": {
    "l": 0.49043,
    "c": 0.20126,
    "h": 290.7
  },
  "luminance": 0.10286
}

Semantic roles & 50–950 ramp

primary

#663DC7

secondary

#BCCE91

accent

#DF49B2

background

#FAF7FD

surface

#F3EDFB

border

#CDC8D4

text

#0F0915

muted

#7F7B83

Preview Lab

Preview with #663DC7

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

Preview Lab → · Contrast checker → · Palette generator →