#663DCF#663DCF

#663DCF is a mid, highly saturated violet. Relative luminance 0.107; OKLCH L 49.7% C 0.211 H 289.3°. Best body text is #FFFFFF at 6.70:1 contrast (WCAG AA passes).

Color values

HEX	#663DCF
RGB	rgb(102, 61, 207)
HSL	hsl(257, 60%, 53%)
HSV	hsv(257, 71%, 81%)
CMYK	cmyk(50.7%, 70.5%, 0%, 18.8%)
CIE-LAB	lab(39.01, 52.16, -69.22)
CIE-LCH	lch(39.01, 86.67, 307.00°)
OKLab	oklab(49.72% 0.0695 -0.1987)
OKLCH	oklch(49.72% 0.211 289.3)
XYZ	xyz(18.4075, 10.6664, 60.1083)
Luminance	0.1067 (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

#663DCF #A6CF3D

analogous

#3D5DCF #663DCF #AF3DCF

triadic

#663DCF #CF663D #3DCF66

tetradic

#663DCF #CF3D5D #A6CF3D #3DCFAF

square

#663DCF #CF3D5D #A6CF3D #3DCFAF

split-complementary

#663DCF #CFAF3D #5DCF3D

monochromatic

#361D75 #4C29A6 #663DCF #8D6EDB #B39FE7

Accessibility & contrast

On white

6.70

#663DCF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.13

#663DCF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #663DCF

6.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663DCF	#FFFFFF	#000000	##FFFFFF
##663DCF	1.00	6.70	3.13	6.70
#FFFFFF	6.70	1.00	21.00	1.00
#000000	3.13	21.00	1.00	21.00
##FFFFFF	6.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005FD3

Deuteranopia (green-blind)

#0058CC

Tritanopia (blue-blind)

#406382

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #663dcf;
/* rgb */ color: rgb(102, 61, 207);
/* oklch */ color: oklch(49.7% 0.211 289.3);

Tailwind

colors: {
  custom: {
    50: '#9b76df',
    500: '#663dcf',
    950: '#000000',
  },
}

SCSS

$custom: #663dcf;
$custom-light: #9b76df;
$custom-dark: #000000;

JSON

{
  "hex": "#663dcf",
  "rgb": {
    "r": 102,
    "g": 61,
    "b": 207
  },
  "hsl": {
    "h": 256.849,
    "s": 60.331,
    "l": 52.549
  },
  "oklch": {
    "l": 0.49721,
    "c": 0.21056,
    "h": 289.3
  },
  "luminance": 0.10667
}

Semantic roles & 50–950 ramp

primary

#663DCF

secondary

#C2D494

accent

#E344B7

background

#FAF7FD

surface

#F4EDFB

border

#CEC8D4

text

#0F0915

muted

#7F7B83

Preview Lab

Preview with #663DCF

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

Preview Lab → · Contrast checker → · Palette generator →