#663BB3#663BB3

#663BB3 is a mid, vivid violet. Relative luminance 0.092; OKLCH L 47.1% C 0.180 H 295.0°. Best body text is #FFFFFF at 7.39:1 contrast (WCAG AA passes).

Color values

HEX	#663BB3
RGB	rgb(102, 59, 179)
HSL	hsl(262, 50%, 47%)
HSV	hsv(262, 67%, 70%)
CMYK	cmyk(43%, 67%, 0%, 29.8%)
CIE-LAB	lab(36.38, 45.49, -57.12)
CIE-LCH	lch(36.38, 73.02, 308.53°)
OKLab	oklab(47.14% 0.0762 -0.1632)
OKLCH	oklch(47.14% 0.18 295)
XYZ	xyz(15.1780, 9.2070, 43.6165)
Luminance	0.0921 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Bluey Purple

#6241C7

ΔE00 3.50

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#663BB3 #88B33B

analogous

#3B4CB3 #663BB3 #A23BB3

triadic

#663BB3 #B3663B #3BB366

tetradic

#663BB3 #B33B4C #88B33B #3BB3A2

square

#663BB3 #B33B4C #88B33B #3BB3A2

split-complementary

#663BB3 #B3A23B #4CB33B

monochromatic

#321D57 #4C2C85 #663BB3 #8760CB #AA8EDA

Accessibility & contrast

On white

7.39

#663BB3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.84

#663BB3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663BB3

7.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663BB3	#FFFFFF	#000000	##FFFFFF
##663BB3	1.00	7.39	2.84	7.39
#FFFFFF	7.39	1.00	21.00	1.00
#000000	2.84	21.00	1.00	21.00
##FFFFFF	7.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057B7

Deuteranopia (green-blind)

#0054B1

Tritanopia (blue-blind)

#515872

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #663bb3;
/* rgb */ color: rgb(102, 59, 179);
/* oklch */ color: oklch(47.1% 0.180 295.0);

Tailwind

colors: {
  custom: {
    50: '#9874cb',
    500: '#663bb3',
    950: '#000000',
  },
}

SCSS

$custom: #663bb3;
$custom-light: #9874cb;
$custom-dark: #000000;

JSON

{
  "hex": "#663bb3",
  "rgb": {
    "r": 102,
    "g": 59,
    "b": 179
  },
  "hsl": {
    "h": 261.5,
    "s": 50.42,
    "l": 46.667
  },
  "oklch": {
    "l": 0.47138,
    "c": 0.18011,
    "h": 295
  },
  "luminance": 0.09207
}

Semantic roles & 50–950 ramp

primary

#663BB3

secondary

#AEC585

accent

#DA4EA8

background

#F9F7FC

surface

#F2EDF9

border

#CCC8D2

text

#0E0813

muted

#7E7B82

Preview Lab

Preview with #663BB3

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

Preview Lab → · Contrast checker → · Palette generator →