#663EB9#663EB9

#663EB9 is a mid, vivid violet. Relative luminance 0.098; OKLCH L 48.0% C 0.183 H 293.2°. Best body text is #FFFFFF at 7.11:1 contrast (WCAG AA passes).

Color values

HEX	#663EB9
RGB	rgb(102, 62, 185)
HSL	hsl(260, 50%, 48%)
HSV	hsv(260, 66%, 73%)
CMYK	cmyk(44.9%, 66.5%, 0%, 27.5%)
CIE-LAB	lab(37.43, 45.52, -58.96)
CIE-LCH	lch(37.43, 74.49, 307.67°)
OKLab	oklab(48.04% 0.0722 -0.1686)
OKLCH	oklch(48.04% 0.183 293.2)
XYZ	xyz(15.9567, 9.7723, 46.9351)
Luminance	0.0977 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Bluey Purple

#6241C7

ΔE00 2.37

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#663EB9 #91B93E

analogous

#3E53B9 #663EB9 #A33EB9

triadic

#663EB9 #B9663E #3EB966

tetradic

#663EB9 #B93E53 #91B93E #3EB9A3

square

#663EB9 #B93E53 #91B93E #3EB9A3

split-complementary

#663EB9 #B9A33E #53B93E

monochromatic

#331F5D #4D2F8B #663EB9 #8968CC #AC96DC

Accessibility & contrast

On white

7.11

#663EB9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.95

#663EB9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663EB9

7.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663EB9	#FFFFFF	#000000	##FFFFFF
##663EB9	1.00	7.11	2.95	7.11
#FFFFFF	7.11	1.00	21.00	1.00
#000000	2.95	21.00	1.00	21.00
##FFFFFF	7.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005ABD

Deuteranopia (green-blind)

#0056B6

Tritanopia (blue-blind)

#4E5C76

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #663eb9;
/* rgb */ color: rgb(102, 62, 185);
/* oklch */ color: oklch(48.0% 0.183 293.2);

Tailwind

colors: {
  custom: {
    50: '#9876cf',
    500: '#663eb9',
    950: '#000000',
  },
}

SCSS

$custom: #663eb9;
$custom-light: #9876cf;
$custom-dark: #000000;

JSON

{
  "hex": "#663eb9",
  "rgb": {
    "r": 102,
    "g": 62,
    "b": 185
  },
  "hsl": {
    "h": 259.512,
    "s": 49.798,
    "l": 48.431
  },
  "oklch": {
    "l": 0.48038,
    "c": 0.18343,
    "h": 293.2
  },
  "luminance": 0.09773
}

Semantic roles & 50–950 ramp

primary

#663EB9

secondary

#B4C78C

accent

#D94EAC

background

#F9F7FC

surface

#F2EDF9

border

#CCC8D2

text

#0E0914

muted

#7E7B82

Preview Lab

Preview with #663EB9

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

Preview Lab → · Contrast checker → · Palette generator →