#663CB2#663CB2

#663CB2 is a mid, vivid violet. Relative luminance 0.093; OKLCH L 47.2% C 0.178 H 295.1°. Best body text is #FFFFFF at 7.36:1 contrast (WCAG AA passes).

Color values

HEX	#663CB2
RGB	rgb(102, 60, 178)
HSL	hsl(261, 50%, 47%)
HSV	hsv(261, 66%, 70%)
CMYK	cmyk(42.7%, 66.3%, 0%, 30.2%)
CIE-LAB	lab(36.50, 44.68, -56.33)
CIE-LCH	lch(36.50, 71.90, 308.42°)
OKLab	oklab(47.2% 0.0752 -0.1609)
OKLCH	oklch(47.2% 0.178 295.1)
XYZ	xyz(15.1291, 9.2705, 43.1031)
Luminance	0.0927 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Bluey Purple

#6241C7

ΔE00 3.54

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#663CB2 #88B23C

analogous

#3C4DB2 #663CB2 #A13CB2

triadic

#663CB2 #B2663C #3CB266

tetradic

#663CB2 #B23C4D #88B23C #3CB2A1

square

#663CB2 #B23C4D #88B23C #3CB2A1

split-complementary

#663CB2 #B2A13C #4DB23C

monochromatic

#321D56 #4C2D84 #663CB2 #8761CA #AA8FD9

Accessibility & contrast

On white

7.36

#663CB2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.85

#663CB2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663CB2

7.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663CB2	#FFFFFF	#000000	##FFFFFF
##663CB2	1.00	7.36	2.85	7.36
#FFFFFF	7.36	1.00	21.00	1.00
#000000	2.85	21.00	1.00	21.00
##FFFFFF	7.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057B6

Deuteranopia (green-blind)

#0054B0

Tritanopia (blue-blind)

#525872

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #663cb2;
/* rgb */ color: rgb(102, 60, 178);
/* oklch */ color: oklch(47.2% 0.178 295.1);

Tailwind

colors: {
  custom: {
    50: '#9874ca',
    500: '#663cb2',
    950: '#000000',
  },
}

SCSS

$custom: #663cb2;
$custom-light: #9874ca;
$custom-dark: #000000;

JSON

{
  "hex": "#663cb2",
  "rgb": {
    "r": 102,
    "g": 60,
    "b": 178
  },
  "hsl": {
    "h": 261.356,
    "s": 49.58,
    "l": 46.667
  },
  "oklch": {
    "l": 0.47201,
    "c": 0.17761,
    "h": 295.1
  },
  "luminance": 0.09271
}

Semantic roles & 50–950 ramp

primary

#663CB2

secondary

#AEC486

accent

#D94FA8

background

#F9F7FC

surface

#F2EDF8

border

#CCC8D1

text

#0E0813

muted

#7E7B82

Preview Lab

Preview with #663CB2

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

Preview Lab → · Contrast checker → · Palette generator →