#6643CC#6643CC

#6643CC is a mid, highly saturated violet. Relative luminance 0.112; OKLCH L 50.3% C 0.200 H 288.8°. Best body text is #FFFFFF at 6.48:1 contrast (WCAG AA passes).

Color values

HEX	#6643CC
RGB	rgb(102, 67, 204)
HSL	hsl(255, 57%, 53%)
HSV	hsv(255, 67%, 80%)
CMYK	cmyk(50%, 67.2%, 0%, 20%)
CIE-LAB	lab(39.91, 48.15, -66.01)
CIE-LCH	lch(39.91, 81.71, 306.11°)
OKLab	oklab(50.29% 0.0646 -0.1894)
OKLCH	oklch(50.29% 0.2 288.8)
XYZ	xyz(18.3826, 11.1979, 58.3079)
Luminance	0.1120 (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

#6643CC #A9CC43

analogous

#4365CC #6643CC #AA43CC

triadic

#6643CC #CC6643 #43CC66

tetradic

#6643CC #CC4365 #A9CC43 #43CCAA

square

#6643CC #CC4365 #A9CC43 #43CCAA

split-complementary

#6643CC #CCAA43 #65CC43

monochromatic

#352075 #4B2DA5 #6643CC #8D73D9 #B4A3E6

Accessibility & contrast

On white

6.48

#6643CC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.24

#6643CC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #6643CC

6.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6643CC	#FFFFFF	#000000	##FFFFFF
##6643CC	1.00	6.48	3.24	6.48
#FFFFFF	6.48	1.00	21.00	1.00
#000000	3.24	21.00	1.00	21.00
##FFFFFF	6.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0061D0

Deuteranopia (green-blind)

#005BC9

Tritanopia (blue-blind)

#426582

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #6643cc;
/* rgb */ color: rgb(102, 67, 204);
/* oklch */ color: oklch(50.3% 0.200 288.8);

Tailwind

colors: {
  custom: {
    50: '#9a79dd',
    500: '#6643cc',
    950: '#000000',
  },
}

SCSS

$custom: #6643cc;
$custom-light: #9a79dd;
$custom-dark: #000000;

JSON

{
  "hex": "#6643cc",
  "rgb": {
    "r": 102,
    "g": 67,
    "b": 204
  },
  "hsl": {
    "h": 255.328,
    "s": 57.322,
    "l": 53.137
  },
  "oklch": {
    "l": 0.50288,
    "c": 0.20008,
    "h": 288.8
  },
  "luminance": 0.11199
}

Semantic roles & 50–950 ramp

primary

#6643CC

secondary

#C4D398

accent

#E147B9

background

#FAF7FD

surface

#F3EEFB

border

#CDC9D4

text

#0F0915

muted

#7F7B83

Preview Lab

Preview with #6643CC

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

Preview Lab → · Contrast checker → · Palette generator →