#663EB2#663EB2

#663EB2 is a mid, vivid violet. Relative luminance 0.095; OKLCH L 47.5% C 0.175 H 294.7°. Best body text is #FFFFFF at 7.25:1 contrast (WCAG AA passes).

Color values

HEX	#663EB2
RGB	rgb(102, 62, 178)
HSL	hsl(261, 48%, 47%)
HSV	hsv(261, 65%, 70%)
CMYK	cmyk(42.7%, 65.2%, 0%, 30.2%)
CIE-LAB	lab(36.90, 43.59, -55.69)
CIE-LCH	lch(36.90, 70.72, 308.06°)
OKLab	oklab(47.49% 0.073 -0.159)
OKLCH	oklch(47.49% 0.175 294.7)
XYZ	xyz(15.2358, 9.4840, 43.1387)
Luminance	0.0948 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#663EB2 #8AB23E

analogous

#3E50B2 #663EB2 #A03EB2

triadic

#663EB2 #B2663E #3EB266

tetradic

#663EB2 #B23E50 #8AB23E #3EB2A0

square

#663EB2 #B23E50 #8AB23E #3EB2A0

split-complementary

#663EB2 #B2A03E #50B23E

monochromatic

#321E57 #4C2E85 #663EB2 #8764C9 #AA92D9

Accessibility & contrast

On white

7.25

#663EB2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.90

#663EB2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663EB2

7.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663EB2	#FFFFFF	#000000	##FFFFFF
##663EB2	1.00	7.25	2.90	7.25
#FFFFFF	7.25	1.00	21.00	1.00
#000000	2.90	21.00	1.00	21.00
##FFFFFF	7.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058B6

Deuteranopia (green-blind)

#0055B0

Tritanopia (blue-blind)

#525972

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #663eb2;
/* rgb */ color: rgb(102, 62, 178);
/* oklch */ color: oklch(47.5% 0.175 294.7);

Tailwind

colors: {
  custom: {
    50: '#9776ca',
    500: '#663eb2',
    950: '#000000',
  },
}

SCSS

$custom: #663eb2;
$custom-light: #9776ca;
$custom-dark: #000000;

JSON

{
  "hex": "#663eb2",
  "rgb": {
    "r": 102,
    "g": 62,
    "b": 178
  },
  "hsl": {
    "h": 260.69,
    "s": 48.333,
    "l": 47.059
  },
  "oklch": {
    "l": 0.47489,
    "c": 0.17497,
    "h": 294.7
  },
  "luminance": 0.09484
}

Semantic roles & 50–950 ramp

primary

#663EB2

secondary

#AFC488

accent

#D850A9

background

#F9F7FC

surface

#F2EDF8

border

#CCC8D1

text

#0E0813

muted

#7E7B82

Preview Lab

Preview with #663EB2

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

Preview Lab → · Contrast checker → · Palette generator →