#663EC8#663EC8

#663EC8 is a mid, highly saturated violet. Relative luminance 0.104; OKLCH L 49.3% C 0.201 H 290.3°. Best body text is #FFFFFF at 6.80:1 contrast (WCAG AA passes).

Color values

HEX	#663EC8
RGB	rgb(102, 62, 200)
HSL	hsl(257, 56%, 51%)
HSV	hsv(257, 69%, 78%)
CMYK	cmyk(49%, 69%, 0%, 21.6%)
CIE-LAB	lab(38.62, 49.69, -65.80)
CIE-LCH	lch(38.62, 82.45, 307.06°)
OKLab	oklab(49.26% 0.0699 -0.1887)
OKLCH	oklch(49.26% 0.201 290.3)
XYZ	xyz(17.6245, 10.4395, 55.7188)
Luminance	0.1044 (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

#663EC8 #A0C83E

analogous

#3E5BC8 #663EC8 #AB3EC8

triadic

#663EC8 #C8663E #3EC866

tetradic

#663EC8 #C83E5B #A0C83E #3EC8AB

square

#663EC8 #C83E5B #A0C83E #3EC8AB

split-complementary

#663EC8 #C8AB3E #5BC83E

monochromatic

#351F6D #4D2D9C #663EC8 #8C6ED6 #B29DE3

Accessibility & contrast

On white

6.80

#663EC8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.09

#663EC8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #663EC8

6.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663EC8	#FFFFFF	#000000	##FFFFFF
##663EC8	1.00	6.80	3.09	6.80
#FFFFFF	6.80	1.00	21.00	1.00
#000000	3.09	21.00	1.00	21.00
##FFFFFF	6.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005DCC

Deuteranopia (green-blind)

#0058C5

Tritanopia (blue-blind)

#45617E

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #663ec8;
/* rgb */ color: rgb(102, 62, 200);
/* oklch */ color: oklch(49.3% 0.201 290.3);

Tailwind

colors: {
  custom: {
    50: '#9a76da',
    500: '#663ec8',
    950: '#000000',
  },
}

SCSS

$custom: #663ec8;
$custom-light: #9a76da;
$custom-dark: #000000;

JSON

{
  "hex": "#663ec8",
  "rgb": {
    "r": 102,
    "g": 62,
    "b": 200
  },
  "hsl": {
    "h": 257.391,
    "s": 55.645,
    "l": 51.373
  },
  "oklch": {
    "l": 0.49262,
    "c": 0.20126,
    "h": 290.3
  },
  "luminance": 0.1044
}

Semantic roles & 50–950 ramp

primary

#663EC8

secondary

#BECF92

accent

#DF49B3

background

#FAF7FD

surface

#F3EDFB

border

#CDC8D4

text

#0F0915

muted

#7F7B83

Preview Lab

Preview with #663EC8

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

Preview Lab → · Contrast checker → · Palette generator →