#663DC6#663DC6

#663DC6 is a mid, highly saturated violet. Relative luminance 0.102; OKLCH L 49.0% C 0.200 H 290.8°. Best body text is #FFFFFF at 6.89:1 contrast (WCAG AA passes).

Color values

HEX	#663DC6
RGB	rgb(102, 61, 198)
HSL	hsl(258, 55%, 51%)
HSV	hsv(258, 69%, 78%)
CMYK	cmyk(48.5%, 69.2%, 0%, 22.4%)
CIE-LAB	lab(38.27, 49.66, -65.21)
CIE-LCH	lch(38.27, 81.97, 307.29°)
OKLab	oklab(48.96% 0.0712 -0.187)
OKLCH	oklch(48.96% 0.2 290.8)
XYZ	xyz(17.3384, 10.2388, 54.4779)
Luminance	0.1024 (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

#663DC6 #9DC63D

analogous

#3D58C6 #663DC6 #AA3DC6

triadic

#663DC6 #C6663D #3DC666

tetradic

#663DC6 #C63D58 #9DC63D #3DC6AA

square

#663DC6 #C63D58 #9DC63D #3DC6AA

split-complementary

#663DC6 #C6AA3D #58C63D

monochromatic

#351F6A #4D2D99 #663DC6 #8B6CD4 #B19CE2

Accessibility & contrast

On white

6.89

#663DC6 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.05

#663DC6 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #663DC6

6.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663DC6	#FFFFFF	#000000	##FFFFFF
##663DC6	1.00	6.89	3.05	6.89
#FFFFFF	6.89	1.00	21.00	1.00
#000000	3.05	21.00	1.00	21.00
##FFFFFF	6.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005CCA

Deuteranopia (green-blind)

#0057C3

Tritanopia (blue-blind)

#47607D

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #663dc6;
/* rgb */ color: rgb(102, 61, 198);
/* oklch */ color: oklch(49.0% 0.200 290.8);

Tailwind

colors: {
  custom: {
    50: '#9a76d8',
    500: '#663dc6',
    950: '#000000',
  },
}

SCSS

$custom: #663dc6;
$custom-light: #9a76d8;
$custom-dark: #000000;

JSON

{
  "hex": "#663dc6",
  "rgb": {
    "r": 102,
    "g": 61,
    "b": 198
  },
  "hsl": {
    "h": 257.956,
    "s": 54.582,
    "l": 50.784
  },
  "oklch": {
    "l": 0.4896,
    "c": 0.20009,
    "h": 290.8
  },
  "luminance": 0.10239
}

Semantic roles & 50–950 ramp

primary

#663DC6

secondary

#BCCE91

accent

#DE4AB2

background

#FAF7FD

surface

#F3EDFB

border

#CDC8D4

text

#0F0915

muted

#7F7B83

Preview Lab

Preview with #663DC6

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

Preview Lab → · Contrast checker → · Palette generator →