#663EB6#663EB6

#663EB6 is a mid, vivid violet. Relative luminance 0.096; OKLCH L 47.8% C 0.180 H 293.8°. Best body text is #FFFFFF at 7.17:1 contrast (WCAG AA passes).

Color values

HEX	#663EB6
RGB	rgb(102, 62, 182)
HSL	hsl(260, 49%, 48%)
HSV	hsv(260, 66%, 71%)
CMYK	cmyk(44%, 65.9%, 0%, 28.6%)
CIE-LAB	lab(37.20, 44.69, -57.56)
CIE-LCH	lch(37.20, 72.88, 307.83°)
OKLab	oklab(47.8% 0.0726 -0.1645)
OKLCH	oklch(47.8% 0.18 293.8)
XYZ	xyz(15.6433, 9.6470, 45.2847)
Luminance	0.0965 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Bluey Purple

#6241C7

ΔE00 2.80

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#663EB6 #8EB63E

analogous

#3E52B6 #663EB6 #A23EB6

triadic

#663EB6 #B6663E #3EB666

tetradic

#663EB6 #B63E52 #8EB63E #3EB6A2

square

#663EB6 #B63E52 #8EB63E #3EB6A2

split-complementary

#663EB6 #B6A23E #52B63E

monochromatic

#331F5B #4C2E88 #663EB6 #8866CB #AB94DB

Accessibility & contrast

On white

7.17

#663EB6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.93

#663EB6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663EB6

7.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663EB6	#FFFFFF	#000000	##FFFFFF
##663EB6	1.00	7.17	2.93	7.17
#FFFFFF	7.17	1.00	21.00	1.00
#000000	2.93	21.00	1.00	21.00
##FFFFFF	7.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0059BA

Deuteranopia (green-blind)

#0055B4

Tritanopia (blue-blind)

#505B74

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #663eb6;
/* rgb */ color: rgb(102, 62, 182);
/* oklch */ color: oklch(47.8% 0.180 293.8);

Tailwind

colors: {
  custom: {
    50: '#9876cd',
    500: '#663eb6',
    950: '#000000',
  },
}

SCSS

$custom: #663eb6;
$custom-light: #9876cd;
$custom-dark: #000000;

JSON

{
  "hex": "#663eb6",
  "rgb": {
    "r": 102,
    "g": 62,
    "b": 182
  },
  "hsl": {
    "h": 260,
    "s": 49.18,
    "l": 47.843
  },
  "oklch": {
    "l": 0.47801,
    "c": 0.17982,
    "h": 293.8
  },
  "luminance": 0.09647
}

Semantic roles & 50–950 ramp

primary

#663EB6

secondary

#B2C68A

accent

#D94FAB

background

#F9F7FC

surface

#F2EDF9

border

#CCC8D2

text

#0E0913

muted

#7E7B82

Preview Lab

Preview with #663EB6

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

Preview Lab → · Contrast checker → · Palette generator →