#663DB2#663DB2

#663DB2 is a mid, vivid violet. Relative luminance 0.094; OKLCH L 47.3% C 0.176 H 294.9°. Best body text is #FFFFFF at 7.30:1 contrast (WCAG AA passes).

Color values

HEX	#663DB2
RGB	rgb(102, 61, 178)
HSL	hsl(261, 49%, 47%)
HSV	hsv(261, 66%, 70%)
CMYK	cmyk(42.7%, 65.7%, 0%, 30.2%)
CIE-LAB	lab(36.70, 44.14, -56.01)
CIE-LCH	lch(36.70, 71.31, 308.24°)
OKLab	oklab(47.34% 0.0741 -0.16)
OKLCH	oklch(47.34% 0.176 294.9)
XYZ	xyz(15.1820, 9.3763, 43.1207)
Luminance	0.0938 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Bluey Purple

#6241C7

ΔE00 3.46

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#663DB2 #89B23D

analogous

#3D4EB2 #663DB2 #A13DB2

triadic

#663DB2 #B2663D #3DB266

tetradic

#663DB2 #B23D4E #89B23D #3DB2A1

square

#663DB2 #B23D4E #89B23D #3DB2A1

split-complementary

#663DB2 #B2A13D #4EB23D

monochromatic

#321E57 #4C2D84 #663DB2 #8763C9 #AA90D9

Accessibility & contrast

On white

7.30

#663DB2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.88

#663DB2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663DB2

7.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663DB2	#FFFFFF	#000000	##FFFFFF
##663DB2	1.00	7.30	2.88	7.30
#FFFFFF	7.30	1.00	21.00	1.00
#000000	2.88	21.00	1.00	21.00
##FFFFFF	7.30	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: #663db2;
/* rgb */ color: rgb(102, 61, 178);
/* oklch */ color: oklch(47.3% 0.176 294.9);

Tailwind

colors: {
  custom: {
    50: '#9875ca',
    500: '#663db2',
    950: '#000000',
  },
}

SCSS

$custom: #663db2;
$custom-light: #9875ca;
$custom-dark: #000000;

JSON

{
  "hex": "#663db2",
  "rgb": {
    "r": 102,
    "g": 61,
    "b": 178
  },
  "hsl": {
    "h": 261.026,
    "s": 48.954,
    "l": 46.863
  },
  "oklch": {
    "l": 0.47344,
    "c": 0.17631,
    "h": 294.9
  },
  "luminance": 0.09377
}

Semantic roles & 50–950 ramp

primary

#663DB2

secondary

#AFC487

accent

#D94FA8

background

#F9F7FC

surface

#F2EDF8

border

#CCC8D1

text

#0E0813

muted

#7E7B82

Preview Lab

Preview with #663DB2

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

Preview Lab → · Contrast checker → · Palette generator →