#663CD0#663CD0

#663CD0 is a mid, highly saturated violet. Relative luminance 0.106; OKLCH L 49.7% C 0.213 H 289.3°. Best body text is #FFFFFF at 6.73:1 contrast (WCAG AA passes).

Color values

HEX	#663CD0
RGB	rgb(102, 60, 208)
HSL	hsl(257, 61%, 53%)
HSV	hsv(257, 71%, 82%)
CMYK	cmyk(51%, 71.2%, 0%, 18.4%)
CIE-LAB	lab(38.92, 52.94, -69.96)
CIE-LCH	lch(38.92, 87.73, 307.12°)
OKLab	oklab(49.68% 0.0702 -0.2009)
OKLCH	oklch(49.68% 0.213 289.3)
XYZ	xyz(18.4772, 10.6097, 60.7366)
Luminance	0.1061 (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

#663CD0 #A6D03C

analogous

#3C5CD0 #663CD0 #B03CD0

triadic

#663CD0 #D0663C #3CD066

tetradic

#663CD0 #D03C5C #A6D03C #3CD0B0

square

#663CD0 #D03C5C #A6D03C #3CD0B0

split-complementary

#663CD0 #D0B03C #5CD03C

monochromatic

#361C75 #4C28A7 #663CD0 #8D6DDC #B39FE8

Accessibility & contrast

On white

6.73

#663CD0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.12

#663CD0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #663CD0

6.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663CD0	#FFFFFF	#000000	##FFFFFF
##663CD0	1.00	6.73	3.12	6.73
#FFFFFF	6.73	1.00	21.00	1.00
#000000	3.12	21.00	1.00	21.00
##FFFFFF	6.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005FD4

Deuteranopia (green-blind)

#0058CD

Tritanopia (blue-blind)

#406382

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #663cd0;
/* rgb */ color: rgb(102, 60, 208);
/* oklch */ color: oklch(49.7% 0.213 289.3);

Tailwind

colors: {
  custom: {
    50: '#9b75df',
    500: '#663cd0',
    950: '#000000',
  },
}

SCSS

$custom: #663cd0;
$custom-light: #9b75df;
$custom-dark: #000000;

JSON

{
  "hex": "#663cd0",
  "rgb": {
    "r": 102,
    "g": 60,
    "b": 208
  },
  "hsl": {
    "h": 257.027,
    "s": 61.157,
    "l": 52.549
  },
  "oklch": {
    "l": 0.49678,
    "c": 0.21282,
    "h": 289.3
  },
  "luminance": 0.10611
}

Semantic roles & 50–950 ramp

primary

#663CD0

secondary

#C2D494

accent

#E444B7

background

#FAF7FD

surface

#F4EDFB

border

#CEC8D4

text

#0F0915

muted

#7F7B83

Preview Lab

Preview with #663CD0

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

Preview Lab → · Contrast checker → · Palette generator →