#663FBA#663FBA

#663FBA is a mid, vivid violet. Relative luminance 0.099; OKLCH L 48.3% C 0.183 H 292.8°. Best body text is #FFFFFF at 7.04:1 contrast (WCAG AA passes).

Color values

HEX	#663FBA
RGB	rgb(102, 63, 186)
HSL	hsl(259, 49%, 49%)
HSV	hsv(259, 66%, 73%)
CMYK	cmyk(45.2%, 66.1%, 0%, 27.1%)
CIE-LAB	lab(37.71, 45.26, -59.10)
CIE-LCH	lch(37.71, 74.44, 307.44°)
OKLab	oklab(48.26% 0.071 -0.169)
OKLCH	oklch(48.26% 0.183 292.8)
XYZ	xyz(16.1175, 9.9245, 47.5113)
Luminance	0.0993 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Bluey Purple

#6241C7

ΔE00 2.16

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#663FBA #93BA3F

analogous

#3F56BA #663FBA #A43FBA

triadic

#663FBA #BA663F #3FBA66

tetradic

#663FBA #BA3F56 #93BA3F #3FBAA4

square

#663FBA #BA3F56 #93BA3F #3FBAA4

split-complementary

#663FBA #BAA43F #56BA3F

monochromatic

#34205F #4D308C #663FBA #896ACC #AD97DC

Accessibility & contrast

On white

7.04

#663FBA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.99

#663FBA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663FBA

7.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663FBA	#FFFFFF	#000000	##FFFFFF
##663FBA	1.00	7.04	2.99	7.04
#FFFFFF	7.04	1.00	21.00	1.00
#000000	2.99	21.00	1.00	21.00
##FFFFFF	7.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005ABE

Deuteranopia (green-blind)

#0056B7

Tritanopia (blue-blind)

#4E5D77

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #663fba;
/* rgb */ color: rgb(102, 63, 186);
/* oklch */ color: oklch(48.3% 0.183 292.8);

Tailwind

colors: {
  custom: {
    50: '#9876d0',
    500: '#663fba',
    950: '#000000',
  },
}

SCSS

$custom: #663fba;
$custom-light: #9876d0;
$custom-dark: #000000;

JSON

{
  "hex": "#663fba",
  "rgb": {
    "r": 102,
    "g": 63,
    "b": 186
  },
  "hsl": {
    "h": 259.024,
    "s": 49.398,
    "l": 48.824
  },
  "oklch": {
    "l": 0.48261,
    "c": 0.18336,
    "h": 292.8
  },
  "luminance": 0.09925
}

Semantic roles & 50–950 ramp

primary

#663FBA

secondary

#B5C88D

accent

#D94FAD

background

#F9F7FC

surface

#F2EDF9

border

#CCC8D2

text

#0E0914

muted

#7E7B82

Preview Lab

Preview with #663FBA

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

Preview Lab → · Contrast checker → · Palette generator →