#663FB2#663FB2

#663FB2 is a mid, vivid violet. Relative luminance 0.096; OKLCH L 47.6% C 0.174 H 294.5°. Best body text is #FFFFFF at 7.19:1 contrast (WCAG AA passes).

Color values

HEX	#663FB2
RGB	rgb(102, 63, 178)
HSL	hsl(260, 48%, 47%)
HSV	hsv(260, 65%, 70%)
CMYK	cmyk(42.7%, 64.6%, 0%, 30.2%)
CIE-LAB	lab(37.10, 43.04, -55.36)
CIE-LCH	lch(37.10, 70.12, 307.87°)
OKLab	oklab(47.64% 0.0719 -0.158)
OKLCH	oklch(47.64% 0.174 294.5)
XYZ	xyz(15.2907, 9.5938, 43.1570)
Luminance	0.0959 (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

#663FB2 #8BB23F

analogous

#3F51B2 #663FB2 #A03FB2

triadic

#663FB2 #B2663F #3FB266

tetradic

#663FB2 #B23F51 #8BB23F #3FB2A0

square

#663FB2 #B23F51 #8BB23F #3FB2A0

split-complementary

#663FB2 #B2A03F #51B23F

monochromatic

#321F58 #4C2F85 #663FB2 #8766C9 #AA93D9

Accessibility & contrast

On white

7.19

#663FB2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.92

#663FB2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663FB2

7.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663FB2	#FFFFFF	#000000	##FFFFFF
##663FB2	1.00	7.19	2.92	7.19
#FFFFFF	7.19	1.00	21.00	1.00
#000000	2.92	21.00	1.00	21.00
##FFFFFF	7.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058B6

Deuteranopia (green-blind)

#0055B0

Tritanopia (blue-blind)

#525A73

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #663fb2;
/* rgb */ color: rgb(102, 63, 178);
/* oklch */ color: oklch(47.6% 0.174 294.5);

Tailwind

colors: {
  custom: {
    50: '#9776ca',
    500: '#663fb2',
    950: '#000000',
  },
}

SCSS

$custom: #663fb2;
$custom-light: #9776ca;
$custom-dark: #000000;

JSON

{
  "hex": "#663fb2",
  "rgb": {
    "r": 102,
    "g": 63,
    "b": 178
  },
  "hsl": {
    "h": 260.348,
    "s": 47.718,
    "l": 47.255
  },
  "oklch": {
    "l": 0.47636,
    "c": 0.17363,
    "h": 294.5
  },
  "luminance": 0.09594
}

Semantic roles & 50–950 ramp

primary

#663FB2

secondary

#B0C489

accent

#D750AA

background

#F9F7FC

surface

#F2EDF8

border

#CCC8D1

text

#0E0913

muted

#7E7B82

Preview Lab

Preview with #663FB2

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

Preview Lab → · Contrast checker → · Palette generator →