#663FDF#663FDF

#663FDF is a mid, highly saturated violet. Relative luminance 0.117; OKLCH L 51.4% C 0.227 H 286.6°. Best body text is #FFFFFF at 6.28:1 contrast (WCAG AA passes).

Color values

HEX	#663FDF
RGB	rgb(102, 63, 223)
HSL	hsl(255, 71%, 56%)
HSV	hsv(255, 72%, 87%)
CMYK	cmyk(54.3%, 71.7%, 0%, 12.5%)
CIE-LAB	lab(40.75, 55.61, -75.57)
CIE-LCH	lch(40.75, 93.83, 306.35°)
OKLab	oklab(51.37% 0.0646 -0.2174)
OKLCH	oklch(51.37% 0.227 286.6)
XYZ	xyz(20.5723, 11.7064, 70.9733)
Luminance	0.1171 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#663FDF #B8DF3F

analogous

#3F68DF #663FDF #B63FDF

triadic

#663FDF #DF663F #3FDF66

tetradic

#663FDF #DF3F68 #B8DF3F #3FDFB6

square

#663FDF #DF3F68 #B8DF3F #3FDFB6

split-complementary

#663FDF #DFB63F #68DF3F

monochromatic

#34178C #4720C1 #663FDF #9073E8 #BAA8F0

Accessibility & contrast

On white

6.28

#663FDF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.34

#663FDF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #663FDF

6.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663FDF	#FFFFFF	#000000	##FFFFFF
##663FDF	1.00	6.28	3.34	6.28
#FFFFFF	6.28	1.00	21.00	1.00
#000000	3.34	21.00	1.00	21.00
##FFFFFF	6.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0064E4

Deuteranopia (green-blind)

#005BDC

Tritanopia (blue-blind)

#316A8B

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #663fdf;
/* rgb */ color: rgb(102, 63, 223);
/* oklch */ color: oklch(51.4% 0.227 286.6);

Tailwind

colors: {
  custom: {
    50: '#9d78ea',
    500: '#663fdf',
    950: '#000000',
  },
}

SCSS

$custom: #663fdf;
$custom-light: #9d78ea;
$custom-dark: #000000;

JSON

{
  "hex": "#663fdf",
  "rgb": {
    "r": 102,
    "g": 63,
    "b": 223
  },
  "hsl": {
    "h": 254.625,
    "s": 71.429,
    "l": 56.078
  },
  "oklch": {
    "l": 0.51372,
    "c": 0.22679,
    "h": 286.6
  },
  "luminance": 0.11708
}

Semantic roles & 50–950 ramp

primary

#663FDF

secondary

#CEDE9C

accent

#EE3AC2

background

#FAF7FE

surface

#F4EDFD

border

#CEC8D5

text

#100916

muted

#7F7B84

Preview Lab

Preview with #663FDF

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

Preview Lab → · Contrast checker → · Palette generator →