#663EC9#663EC9

#663EC9 is a mid, highly saturated violet. Relative luminance 0.105; OKLCH L 49.3% C 0.202 H 290.2°. Best body text is #FFFFFF at 6.78:1 contrast (WCAG AA passes).

Color values

HEX	#663EC9
RGB	rgb(102, 62, 201)
HSL	hsl(257, 56%, 52%)
HSV	hsv(257, 69%, 79%)
CMYK	cmyk(49.3%, 69.2%, 0%, 21.2%)
CIE-LAB	lab(38.70, 49.97, -66.25)
CIE-LCH	lch(38.70, 82.98, 307.03°)
OKLab	oklab(49.35% 0.0698 -0.19)
OKLCH	oklch(49.35% 0.202 290.2)
XYZ	xyz(17.7417, 10.4864, 56.3363)
Luminance	0.1049 (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

#663EC9 #A1C93E

analogous

#3E5CC9 #663EC9 #AB3EC9

triadic

#663EC9 #C9663E #3EC966

tetradic

#663EC9 #C93E5C #A1C93E #3EC9AB

square

#663EC9 #C93E5C #A1C93E #3EC9AB

split-complementary

#663EC9 #C9AB3E #5CC93E

monochromatic

#361F6E #4D2C9E #663EC9 #8C6ED6 #B29EE4

Accessibility & contrast

On white

6.78

#663EC9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.10

#663EC9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #663EC9

6.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663EC9	#FFFFFF	#000000	##FFFFFF
##663EC9	1.00	6.78	3.10	6.78
#FFFFFF	6.78	1.00	21.00	1.00
#000000	3.10	21.00	1.00	21.00
##FFFFFF	6.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005ECD

Deuteranopia (green-blind)

#0058C6

Tritanopia (blue-blind)

#45617F

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #663ec9;
/* rgb */ color: rgb(102, 62, 201);
/* oklch */ color: oklch(49.3% 0.202 290.2);

Tailwind

colors: {
  custom: {
    50: '#9a76da',
    500: '#663ec9',
    950: '#000000',
  },
}

SCSS

$custom: #663ec9;
$custom-light: #9a76da;
$custom-dark: #000000;

JSON

{
  "hex": "#663ec9",
  "rgb": {
    "r": 102,
    "g": 62,
    "b": 201
  },
  "hsl": {
    "h": 257.266,
    "s": 56.275,
    "l": 51.569
  },
  "oklch": {
    "l": 0.49345,
    "c": 0.20244,
    "h": 290.2
  },
  "luminance": 0.10487
}

Semantic roles & 50–950 ramp

primary

#663EC9

secondary

#BED093

accent

#E048B4

background

#FAF7FD

surface

#F3EDFB

border

#CDC8D4

text

#0F0915

muted

#7F7B83

Preview Lab

Preview with #663EC9

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

Preview Lab → · Contrast checker → · Palette generator →