#663CCC#663CCC

#663CCC is a mid, highly saturated violet. Relative luminance 0.104; OKLCH L 49.3% C 0.208 H 289.9°. Best body text is #FFFFFF at 6.81:1 contrast (WCAG AA passes).

Color values

HEX	#663CCC
RGB	rgb(102, 60, 204)
HSL	hsl(258, 59%, 52%)
HSV	hsv(258, 71%, 80%)
CMYK	cmyk(50%, 70.6%, 0%, 20%)
CIE-LAB	lab(38.58, 51.84, -68.19)
CIE-LCH	lch(38.58, 85.66, 307.24°)
OKLab	oklab(49.33% 0.071 -0.1957)
OKLCH	oklch(49.33% 0.208 289.9)
XYZ	xyz(17.9913, 10.4154, 58.1774)
Luminance	0.1042 (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

#663CCC #A2CC3C

analogous

#3C5ACC #663CCC #AE3CCC

triadic

#663CCC #CC663C #3CCC66

tetradic

#663CCC #CC3C5A #A2CC3C #3CCCAE

square

#663CCC #CC3C5A #A2CC3C #3CCCAE

split-complementary

#663CCC #CCAE3C #5ACC3C

monochromatic

#361D70 #4D2AA1 #663CCC #8C6DD9 #B29DE5

Accessibility & contrast

On white

6.81

#663CCC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.08

#663CCC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #663CCC

6.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663CCC	#FFFFFF	#000000	##FFFFFF
##663CCC	1.00	6.81	3.08	6.81
#FFFFFF	6.81	1.00	21.00	1.00
#000000	3.08	21.00	1.00	21.00
##FFFFFF	6.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005DD0

Deuteranopia (green-blind)

#0057C9

Tritanopia (blue-blind)

#436180

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #663ccc;
/* rgb */ color: rgb(102, 60, 204);
/* oklch */ color: oklch(49.3% 0.208 289.9);

Tailwind

colors: {
  custom: {
    50: '#9b75dd',
    500: '#663ccc',
    950: '#000000',
  },
}

SCSS

$custom: #663ccc;
$custom-light: #9b75dd;
$custom-dark: #000000;

JSON

{
  "hex": "#663ccc",
  "rgb": {
    "r": 102,
    "g": 60,
    "b": 204
  },
  "hsl": {
    "h": 257.5,
    "s": 58.537,
    "l": 51.765
  },
  "oklch": {
    "l": 0.49334,
    "c": 0.20822,
    "h": 289.9
  },
  "luminance": 0.10416
}

Semantic roles & 50–950 ramp

primary

#663CCC

secondary

#BFD192

accent

#E246B4

background

#FAF7FD

surface

#F4EDFB

border

#CEC8D4

text

#0F0915

muted

#7F7B83

Preview Lab

Preview with #663CCC

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

Preview Lab → · Contrast checker → · Palette generator →