#663DB9#663DB9

#663DB9 is a mid, vivid violet. Relative luminance 0.097; OKLCH L 47.9% C 0.185 H 293.4°. Best body text is #FFFFFF at 7.16:1 contrast (WCAG AA passes).

Color values

HEX	#663DB9
RGB	rgb(102, 61, 185)
HSL	hsl(260, 50%, 48%)
HSV	hsv(260, 67%, 73%)
CMYK	cmyk(44.9%, 67%, 0%, 27.5%)
CIE-LAB	lab(37.23, 46.06, -59.28)
CIE-LCH	lch(37.23, 75.07, 307.85°)
OKLab	oklab(47.9% 0.0733 -0.1696)
OKLCH	oklch(47.9% 0.185 293.4)
XYZ	xyz(15.9028, 9.6646, 46.9171)
Luminance	0.0966 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Bluey Purple

#6241C7

ΔE00 2.47

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#663DB9 #90B93D

analogous

#3D52B9 #663DB9 #A43DB9

triadic

#663DB9 #B9663D #3DB966

tetradic

#663DB9 #B93D52 #90B93D #3DB9A4

square

#663DB9 #B93D52 #90B93D #3DB9A4

split-complementary

#663DB9 #B9A43D #52B93D

monochromatic

#331F5D #4D2E8B #663DB9 #8866CD #AC95DC

Accessibility & contrast

On white

7.16

#663DB9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.93

#663DB9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663DB9

7.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663DB9	#FFFFFF	#000000	##FFFFFF
##663DB9	1.00	7.16	2.93	7.16
#FFFFFF	7.16	1.00	21.00	1.00
#000000	2.93	21.00	1.00	21.00
##FFFFFF	7.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0059BD

Deuteranopia (green-blind)

#0055B6

Tritanopia (blue-blind)

#4E5B76

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #663db9;
/* rgb */ color: rgb(102, 61, 185);
/* oklch */ color: oklch(47.9% 0.185 293.4);

Tailwind

colors: {
  custom: {
    50: '#9875cf',
    500: '#663db9',
    950: '#000000',
  },
}

SCSS

$custom: #663db9;
$custom-light: #9875cf;
$custom-dark: #000000;

JSON

{
  "hex": "#663db9",
  "rgb": {
    "r": 102,
    "g": 61,
    "b": 185
  },
  "hsl": {
    "h": 259.839,
    "s": 50.407,
    "l": 48.235
  },
  "oklch": {
    "l": 0.47897,
    "c": 0.18471,
    "h": 293.4
  },
  "luminance": 0.09665
}

Semantic roles & 50–950 ramp

primary

#663DB9

secondary

#B3C78B

accent

#DA4EAC

background

#F9F7FC

surface

#F2EDF9

border

#CCC8D2

text

#0E0814

muted

#7E7B82

Preview Lab

Preview with #663DB9

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

Preview Lab → · Contrast checker → · Palette generator →