#663BB7#663BB7

#663BB7 is a mid, vivid violet. Relative luminance 0.094; OKLCH L 47.5% C 0.185 H 294.1°. Best body text is #FFFFFF at 7.31:1 contrast (WCAG AA passes).

Color values

HEX	#663BB7
RGB	rgb(102, 59, 183)
HSL	hsl(261, 51%, 47%)
HSV	hsv(261, 68%, 72%)
CMYK	cmyk(44.3%, 67.8%, 0%, 28.2%)
CIE-LAB	lab(36.69, 46.58, -58.99)
CIE-LCH	lch(36.69, 75.16, 308.30°)
OKLab	oklab(47.46% 0.0756 -0.1687)
OKLCH	oklch(47.46% 0.185 294.1)
XYZ	xyz(15.5884, 9.3712, 45.7781)
Luminance	0.0937 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Bluey Purple

#6241C7

ΔE00 2.96

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#663BB7 #8CB73B

analogous

#3B4EB7 #663BB7 #A43BB7

triadic

#663BB7 #B7663B #3BB766

tetradic

#663BB7 #B73B4E #8CB73B #3BB7A4

square

#663BB7 #B73B4E #8CB73B #3BB7A4

split-complementary

#663BB7 #B7A43B #4EB73B

monochromatic

#321D5A #4C2C89 #663BB7 #8763CD #AB91DC

Accessibility & contrast

On white

7.31

#663BB7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.87

#663BB7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663BB7

7.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663BB7	#FFFFFF	#000000	##FFFFFF
##663BB7	1.00	7.31	2.87	7.31
#FFFFFF	7.31	1.00	21.00	1.00
#000000	2.87	21.00	1.00	21.00
##FFFFFF	7.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058BB

Deuteranopia (green-blind)

#0054B4

Tritanopia (blue-blind)

#4F5974

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #663bb7;
/* rgb */ color: rgb(102, 59, 183);
/* oklch */ color: oklch(47.5% 0.185 294.1);

Tailwind

colors: {
  custom: {
    50: '#9874cd',
    500: '#663bb7',
    950: '#000000',
  },
}

SCSS

$custom: #663bb7;
$custom-light: #9874cd;
$custom-dark: #000000;

JSON

{
  "hex": "#663bb7",
  "rgb": {
    "r": 102,
    "g": 59,
    "b": 183
  },
  "hsl": {
    "h": 260.806,
    "s": 51.24,
    "l": 47.451
  },
  "oklch": {
    "l": 0.47457,
    "c": 0.18485,
    "h": 294.1
  },
  "luminance": 0.09372
}

Semantic roles & 50–950 ramp

primary

#663BB7

secondary

#B1C687

accent

#DB4DAA

background

#F9F7FC

surface

#F2EDF9

border

#CCC8D2

text

#0E0814

muted

#7E7B82

Preview Lab

Preview with #663BB7

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

Preview Lab → · Contrast checker → · Palette generator →