#663BCA#663BCA

#663BCA is a mid, highly saturated violet. Relative luminance 0.102; OKLCH L 49.0% C 0.207 H 290.4°. Best body text is #FFFFFF at 6.90:1 contrast (WCAG AA passes).

Color values

HEX	#663BCA
RGB	rgb(102, 59, 202)
HSL	hsl(258, 57%, 51%)
HSV	hsv(258, 71%, 79%)
CMYK	cmyk(49.5%, 70.8%, 0%, 20.8%)
CIE-LAB	lab(38.23, 51.79, -67.60)
CIE-LCH	lch(38.23, 85.16, 307.46°)
OKLab	oklab(49.03% 0.0723 -0.194)
OKLCH	oklch(49.03% 0.207 290.4)
XYZ	xyz(17.7011, 10.2163, 56.9049)
Luminance	0.1022 (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

#663BCA #9FCA3B

analogous

#3B57CA #663BCA #AD3BCA

triadic

#663BCA #CA663B #3BCA66

tetradic

#663BCA #CA3B57 #9FCA3B #3BCAAD

square

#663BCA #CA3B57 #9FCA3B #3BCAAD

split-complementary

#663BCA #CAAD3B #57CA3B

monochromatic

#351E6D #4D2B9D #663BCA #8C6BD7 #B19BE4

Accessibility & contrast

On white

6.90

#663BCA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.04

#663BCA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #663BCA

6.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663BCA	#FFFFFF	#000000	##FFFFFF
##663BCA	1.00	6.90	3.04	6.90
#FFFFFF	6.90	1.00	21.00	1.00
#000000	3.04	21.00	1.00	21.00
##FFFFFF	6.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005CCE

Deuteranopia (green-blind)

#0057C7

Tritanopia (blue-blind)

#44607E

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #663bca;
/* rgb */ color: rgb(102, 59, 202);
/* oklch */ color: oklch(49.0% 0.207 290.4);

Tailwind

colors: {
  custom: {
    50: '#9b75db',
    500: '#663bca',
    950: '#000000',
  },
}

SCSS

$custom: #663bca;
$custom-light: #9b75db;
$custom-dark: #000000;

JSON

{
  "hex": "#663bca",
  "rgb": {
    "r": 102,
    "g": 59,
    "b": 202
  },
  "hsl": {
    "h": 258.042,
    "s": 57.43,
    "l": 51.176
  },
  "oklch": {
    "l": 0.49034,
    "c": 0.20704,
    "h": 290.4
  },
  "luminance": 0.10217
}

Semantic roles & 50–950 ramp

primary

#663BCA

secondary

#BDD091

accent

#E147B3

background

#FAF7FD

surface

#F4EDFB

border

#CEC8D4

text

#0F0815

muted

#7F7B83

Preview Lab

Preview with #663BCA

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

Preview Lab → · Contrast checker → · Palette generator →