#663BB9#663BB9

#663BB9 is a mid, vivid violet. Relative luminance 0.095; OKLCH L 47.6% C 0.187 H 293.7°. Best body text is #FFFFFF at 7.26:1 contrast (WCAG AA passes).

Color values

HEX	#663BB9
RGB	rgb(102, 59, 185)
HSL	hsl(260, 52%, 48%)
HSV	hsv(260, 68%, 73%)
CMYK	cmyk(44.9%, 68.1%, 0%, 27.5%)
CIE-LAB	lab(36.85, 47.13, -59.91)
CIE-LCH	lch(36.85, 76.22, 308.19°)
OKLab	oklab(47.62% 0.0753 -0.1714)
OKLCH	oklch(47.62% 0.187 293.7)
XYZ	xyz(15.7980, 9.4550, 46.8822)
Luminance	0.0945 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Bluey Purple

#6241C7

ΔE00 2.71

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#663BB9 #8EB93B

analogous

#3B4FB9 #663BB9 #A53BB9

triadic

#663BB9 #B9663B #3BB966

tetradic

#663BB9 #B93B4F #8EB93B #3BB9A5

square

#663BB9 #B93B4F #8EB93B #3BB9A5

split-complementary

#663BB9 #B9A53B #4FB93B

monochromatic

#331D5C #4C2C8B #663BB9 #8864CD #AB92DC

Accessibility & contrast

On white

7.26

#663BB9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.89

#663BB9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663BB9

7.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663BB9	#FFFFFF	#000000	##FFFFFF
##663BB9	1.00	7.26	2.89	7.26
#FFFFFF	7.26	1.00	21.00	1.00
#000000	2.89	21.00	1.00	21.00
##FFFFFF	7.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058BD

Deuteranopia (green-blind)

#0054B6

Tritanopia (blue-blind)

#4E5A75

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #663bb9;
/* rgb */ color: rgb(102, 59, 185);
/* oklch */ color: oklch(47.6% 0.187 293.7);

Tailwind

colors: {
  custom: {
    50: '#9874cf',
    500: '#663bb9',
    950: '#000000',
  },
}

SCSS

$custom: #663bb9;
$custom-light: #9874cf;
$custom-dark: #000000;

JSON

{
  "hex": "#663bb9",
  "rgb": {
    "r": 102,
    "g": 59,
    "b": 185
  },
  "hsl": {
    "h": 260.476,
    "s": 51.639,
    "l": 47.843
  },
  "oklch": {
    "l": 0.47619,
    "c": 0.18722,
    "h": 293.7
  },
  "luminance": 0.09455
}

Semantic roles & 50–950 ramp

primary

#663BB9

secondary

#B2C788

accent

#DB4DAB

background

#F9F7FC

surface

#F2EDF9

border

#CCC8D2

text

#0E0814

muted

#7E7B82

Preview Lab

Preview with #663BB9

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

Preview Lab → · Contrast checker → · Palette generator →