#663EBB#663EBB

#663EBB is a mid, vivid violet. Relative luminance 0.099; OKLCH L 48.2% C 0.186 H 292.8°. Best body text is #FFFFFF at 7.07:1 contrast (WCAG AA passes).

Color values

HEX	#663EBB
RGB	rgb(102, 62, 187)
HSL	hsl(259, 50%, 49%)
HSV	hsv(259, 67%, 73%)
CMYK	cmyk(45.5%, 66.8%, 0%, 26.7%)
CIE-LAB	lab(37.59, 46.08, -59.88)
CIE-LCH	lch(37.59, 75.56, 307.58°)
OKLab	oklab(48.2% 0.072 -0.1713)
OKLCH	oklch(48.2% 0.186 292.8)
XYZ	xyz(16.1693, 9.8574, 48.0548)
Luminance	0.0986 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Bluey Purple

#6241C7

ΔE00 2.10

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#663EBB #93BB3E

analogous

#3E55BB #663EBB #A53EBB

triadic

#663EBB #BB663E #3EBB66

tetradic

#663EBB #BB3E55 #93BB3E #3EBBA5

square

#663EBB #BB3E55 #93BB3E #3EBBA5

split-complementary

#663EBB #BBA53E #55BB3E

monochromatic

#34205F #4D2F8D #663EBB #8969CD #AD97DC

Accessibility & contrast

On white

7.07

#663EBB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.97

#663EBB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663EBB

7.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663EBB	#FFFFFF	#000000	##FFFFFF
##663EBB	1.00	7.07	2.97	7.07
#FFFFFF	7.07	1.00	21.00	1.00
#000000	2.97	21.00	1.00	21.00
##FFFFFF	7.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005ABF

Deuteranopia (green-blind)

#0056B8

Tritanopia (blue-blind)

#4D5C77

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #663ebb;
/* rgb */ color: rgb(102, 62, 187);
/* oklch */ color: oklch(48.2% 0.186 292.8);

Tailwind

colors: {
  custom: {
    50: '#9976d0',
    500: '#663ebb',
    950: '#000000',
  },
}

SCSS

$custom: #663ebb;
$custom-light: #9976d0;
$custom-dark: #000000;

JSON

{
  "hex": "#663ebb",
  "rgb": {
    "r": 102,
    "g": 62,
    "b": 187
  },
  "hsl": {
    "h": 259.2,
    "s": 50.201,
    "l": 48.824
  },
  "oklch": {
    "l": 0.48198,
    "c": 0.18583,
    "h": 292.8
  },
  "luminance": 0.09858
}

Semantic roles & 50–950 ramp

primary

#663EBB

secondary

#B5C88D

accent

#DA4EAD

background

#F9F7FC

surface

#F2EDF9

border

#CCC8D2

text

#0E0914

muted

#7E7B82

Preview Lab

Preview with #663EBB

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

Preview Lab → · Contrast checker → · Palette generator →