#663EB8#663EB8

#663EB8 is a mid, vivid violet. Relative luminance 0.097; OKLCH L 48.0% C 0.182 H 293.4°. Best body text is #FFFFFF at 7.13:1 contrast (WCAG AA passes).

Color values

HEX	#663EB8
RGB	rgb(102, 62, 184)
HSL	hsl(260, 50%, 48%)
HSV	hsv(260, 66%, 72%)
CMYK	cmyk(44.6%, 66.3%, 0%, 27.8%)
CIE-LAB	lab(37.35, 45.25, -58.49)
CIE-LCH	lch(37.35, 73.95, 307.72°)
OKLab	oklab(47.96% 0.0723 -0.1673)
OKLCH	oklch(47.96% 0.182 293.4)
XYZ	xyz(15.8515, 9.7303, 46.3810)
Luminance	0.0973 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Bluey Purple

#6241C7

ΔE00 2.51

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#663EB8 #90B83E

analogous

#3E53B8 #663EB8 #A33EB8

triadic

#663EB8 #B8663E #3EB866

tetradic

#663EB8 #B83E53 #90B83E #3EB8A3

square

#663EB8 #B83E53 #90B83E #3EB8A3

split-complementary

#663EB8 #B8A33E #53B83E

monochromatic

#331F5C #4D2F8A #663EB8 #8867CC #AC95DB

Accessibility & contrast

On white

7.13

#663EB8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.95

#663EB8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663EB8

7.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663EB8	#FFFFFF	#000000	##FFFFFF
##663EB8	1.00	7.13	2.95	7.13
#FFFFFF	7.13	1.00	21.00	1.00
#000000	2.95	21.00	1.00	21.00
##FFFFFF	7.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0059BC

Deuteranopia (green-blind)

#0056B5

Tritanopia (blue-blind)

#4F5B76

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #663eb8;
/* rgb */ color: rgb(102, 62, 184);
/* oklch */ color: oklch(48.0% 0.182 293.4);

Tailwind

colors: {
  custom: {
    50: '#9876ce',
    500: '#663eb8',
    950: '#000000',
  },
}

SCSS

$custom: #663eb8;
$custom-light: #9876ce;
$custom-dark: #000000;

JSON

{
  "hex": "#663eb8",
  "rgb": {
    "r": 102,
    "g": 62,
    "b": 184
  },
  "hsl": {
    "h": 259.672,
    "s": 49.593,
    "l": 48.235
  },
  "oklch": {
    "l": 0.47959,
    "c": 0.18223,
    "h": 293.4
  },
  "luminance": 0.09731
}

Semantic roles & 50–950 ramp

primary

#663EB8

secondary

#B3C78B

accent

#D94FAC

background

#F9F7FC

surface

#F2EDF9

border

#CCC8D2

text

#0E0914

muted

#7E7B82

Preview Lab

Preview with #663EB8

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

Preview Lab → · Contrast checker → · Palette generator →