#6643CB#6643CB

#6643CB is a mid, vivid violet. Relative luminance 0.112; OKLCH L 50.2% C 0.199 H 289.0°. Best body text is #FFFFFF at 6.50:1 contrast (WCAG AA passes).

Color values

HEX	#6643CB
RGB	rgb(102, 67, 203)
HSL	hsl(255, 57%, 53%)
HSV	hsv(255, 67%, 80%)
CMYK	cmyk(49.8%, 67%, 0%, 20.4%)
CIE-LAB	lab(39.83, 47.87, -65.56)
CIE-LCH	lch(39.83, 81.18, 306.13°)
OKLab	oklab(50.21% 0.0648 -0.188)
OKLCH	oklch(50.21% 0.199 289)
XYZ	xyz(18.2630, 11.1501, 57.6782)
Luminance	0.1115 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Bluey Purple

#6241C7

ΔE00 0.99

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6643CB #A8CB43

analogous

#4364CB #6643CB #AA43CB

triadic

#6643CB #CB6643 #43CB66

tetradic

#6643CB #CB4364 #A8CB43 #43CBAA

square

#6643CB #CB4364 #A8CB43 #43CBAA

split-complementary

#6643CB #CBAA43 #64CB43

monochromatic

#362074 #4C2DA4 #6643CB #8D73D8 #B4A3E6

Accessibility & contrast

On white

6.50

#6643CB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.23

#6643CB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #6643CB

6.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6643CB	#FFFFFF	#000000	##FFFFFF
##6643CB	1.00	6.50	3.23	6.50
#FFFFFF	6.50	1.00	21.00	1.00
#000000	3.23	21.00	1.00	21.00
##FFFFFF	6.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0061CF

Deuteranopia (green-blind)

#005AC8

Tritanopia (blue-blind)

#436581

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #6643cb;
/* rgb */ color: rgb(102, 67, 203);
/* oklch */ color: oklch(50.2% 0.199 289.0);

Tailwind

colors: {
  custom: {
    50: '#9a79dc',
    500: '#6643cb',
    950: '#000000',
  },
}

SCSS

$custom: #6643cb;
$custom-light: #9a79dc;
$custom-dark: #000000;

JSON

{
  "hex": "#6643cb",
  "rgb": {
    "r": 102,
    "g": 67,
    "b": 203
  },
  "hsl": {
    "h": 255.441,
    "s": 56.667,
    "l": 52.941
  },
  "oklch": {
    "l": 0.50206,
    "c": 0.19888,
    "h": 289
  },
  "luminance": 0.11151
}

Semantic roles & 50–950 ramp

primary

#6643CB

secondary

#C3D298

accent

#E048B9

background

#FAF7FD

surface

#F3EEFB

border

#CDC9D4

text

#0F0915

muted

#7F7B83

Preview Lab

Preview with #6643CB

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

Preview Lab → · Contrast checker → · Palette generator →