#663DC3#663DC3

#663DC3 is a mid, vivid violet. Relative luminance 0.101; OKLCH L 48.7% C 0.197 H 291.4°. Best body text is #FFFFFF at 6.95:1 contrast (WCAG AA passes).

Color values

HEX	#663DC3
RGB	rgb(102, 61, 195)
HSL	hsl(258, 53%, 50%)
HSV	hsv(258, 69%, 76%)
CMYK	cmyk(47.7%, 68.7%, 0%, 23.5%)
CIE-LAB	lab(38.02, 48.83, -63.86)
CIE-LCH	lch(38.02, 80.38, 307.40°)
OKLab	oklab(48.71% 0.0717 -0.183)
OKLCH	oklch(48.71% 0.197 291.4)
XYZ	xyz(16.9958, 10.1018, 52.6735)
Luminance	0.1010 (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

#663DC3 #9AC33D

analogous

#3D57C3 #663DC3 #A93DC3

triadic

#663DC3 #C3663D #3DC366

tetradic

#663DC3 #C33D57 #9AC33D #3DC3A9

square

#663DC3 #C33D57 #9AC33D #3DC3A9

split-complementary

#663DC3 #C3A93D #57C33D

monochromatic

#352066 #4D2E95 #663DC3 #8B6CD1 #B09AE0

Accessibility & contrast

On white

6.95

#663DC3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.02

#663DC3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #663DC3

6.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663DC3	#FFFFFF	#000000	##FFFFFF
##663DC3	1.00	6.95	3.02	6.95
#FFFFFF	6.95	1.00	21.00	1.00
#000000	3.02	21.00	1.00	21.00
##FFFFFF	6.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005CC7

Deuteranopia (green-blind)

#0057C0

Tritanopia (blue-blind)

#485F7B

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #663dc3;
/* rgb */ color: rgb(102, 61, 195);
/* oklch */ color: oklch(48.7% 0.197 291.4);

Tailwind

colors: {
  custom: {
    50: '#9a76d6',
    500: '#663dc3',
    950: '#000000',
  },
}

SCSS

$custom: #663dc3;
$custom-light: #9a76d6;
$custom-dark: #000000;

JSON

{
  "hex": "#663dc3",
  "rgb": {
    "r": 102,
    "g": 61,
    "b": 195
  },
  "hsl": {
    "h": 258.358,
    "s": 52.756,
    "l": 50.196
  },
  "oklch": {
    "l": 0.4871,
    "c": 0.19656,
    "h": 291.4
  },
  "luminance": 0.10102
}

Semantic roles & 50–950 ramp

primary

#663DC3

secondary

#BACC90

accent

#DC4CB0

background

#FAF7FD

surface

#F3EDFA

border

#CDC8D3

text

#0F0914

muted

#7F7B83

Preview Lab

Preview with #663DC3

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

Preview Lab → · Contrast checker → · Palette generator →