#663CCF#663CCF

#663CCF is a mid, highly saturated violet. Relative luminance 0.106; OKLCH L 49.6% C 0.212 H 289.4°. Best body text is #FFFFFF at 6.75:1 contrast (WCAG AA passes).

Color values

HEX	#663CCF
RGB	rgb(102, 60, 207)
HSL	hsl(257, 60%, 52%)
HSV	hsv(257, 71%, 81%)
CMYK	cmyk(50.7%, 71%, 0%, 18.8%)
CIE-LAB	lab(38.83, 52.67, -69.52)
CIE-LCH	lch(38.83, 87.21, 307.15°)
OKLab	oklab(49.59% 0.0704 -0.1996)
OKLCH	oklch(49.59% 0.212 289.4)
XYZ	xyz(18.3546, 10.5607, 60.0907)
Luminance	0.1056 (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

#663CCF #A5CF3C

analogous

#3C5BCF #663CCF #B03CCF

triadic

#663CCF #CF663C #3CCF66

tetradic

#663CCF #CF3C5B #A5CF3C #3CCFB0

square

#663CCF #CF3C5B #A5CF3C #3CCFB0

split-complementary

#663CCF #CFB03C #5BCF3C

monochromatic

#361D74 #4C29A5 #663CCF #8D6DDB #B39EE7

Accessibility & contrast

On white

6.75

#663CCF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.11

#663CCF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #663CCF

6.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663CCF	#FFFFFF	#000000	##FFFFFF
##663CCF	1.00	6.75	3.11	6.75
#FFFFFF	6.75	1.00	21.00	1.00
#000000	3.11	21.00	1.00	21.00
##FFFFFF	6.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005ED3

Deuteranopia (green-blind)

#0058CC

Tritanopia (blue-blind)

#406382

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #663ccf;
/* rgb */ color: rgb(102, 60, 207);
/* oklch */ color: oklch(49.6% 0.212 289.4);

Tailwind

colors: {
  custom: {
    50: '#9b75df',
    500: '#663ccf',
    950: '#000000',
  },
}

SCSS

$custom: #663ccf;
$custom-light: #9b75df;
$custom-dark: #000000;

JSON

{
  "hex": "#663ccf",
  "rgb": {
    "r": 102,
    "g": 60,
    "b": 207
  },
  "hsl": {
    "h": 257.143,
    "s": 60.494,
    "l": 52.353
  },
  "oklch": {
    "l": 0.49592,
    "c": 0.21167,
    "h": 289.4
  },
  "luminance": 0.10561
}

Semantic roles & 50–950 ramp

primary

#663CCF

secondary

#C1D393

accent

#E444B6

background

#FAF7FD

surface

#F4EDFB

border

#CEC8D4

text

#0F0915

muted

#7F7B83

Preview Lab

Preview with #663CCF

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

Preview Lab → · Contrast checker → · Palette generator →