#643CCB#643CCB

#643CCB is a mid, highly saturated violet. Relative luminance 0.103; OKLCH L 49.1% C 0.207 H 289.3°. Best body text is #FFFFFF at 6.88:1 contrast (WCAG AA passes).

Color values

HEX	#643CCB
RGB	rgb(100, 60, 203)
HSL	hsl(257, 58%, 52%)
HSV	hsv(257, 70%, 80%)
CMYK	cmyk(50.7%, 70.4%, 0%, 20.4%)
CIE-LAB	lab(38.29, 51.23, -68.09)
CIE-LCH	lch(38.29, 85.21, 306.96°)
OKLab	oklab(49.06% 0.0684 -0.1955)
OKLCH	oklch(49.06% 0.207 289.3)
XYZ	xyz(17.6478, 10.2521, 57.5373)
Luminance	0.1025 (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

#643CCB #A3CB3C

analogous

#3C5CCB #643CCB #AC3CCB

triadic

#643CCB #CB643C #3CCB64

tetradic

#643CCB #CB3C5C #A3CB3C #3CCBAC

square

#643CCB #CB3C5C #A3CB3C #3CCBAC

split-complementary

#643CCB #CBAC3C #5CCB3C

monochromatic

#341E6F #4B2A9F #643CCB #8A6CD8 #B19DE5

Accessibility & contrast

On white

6.88

#643CCB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.05

#643CCB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #643CCB

6.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643CCB	#FFFFFF	#000000	##FFFFFF
##643CCB	1.00	6.88	3.05	6.88
#FFFFFF	6.88	1.00	21.00	1.00
#000000	3.05	21.00	1.00	21.00
##FFFFFF	6.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005DCF

Deuteranopia (green-blind)

#0057C8

Tritanopia (blue-blind)

#3F617F

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #643ccb;
/* rgb */ color: rgb(100, 60, 203);
/* oklch */ color: oklch(49.1% 0.207 289.3);

Tailwind

colors: {
  custom: {
    50: '#9a75dc',
    500: '#643ccb',
    950: '#000000',
  },
}

SCSS

$custom: #643ccb;
$custom-light: #9a75dc;
$custom-dark: #000000;

JSON

{
  "hex": "#643ccb",
  "rgb": {
    "r": 100,
    "g": 60,
    "b": 203
  },
  "hsl": {
    "h": 256.783,
    "s": 57.895,
    "l": 51.569
  },
  "oklch": {
    "l": 0.49057,
    "c": 0.20711,
    "h": 289.3
  },
  "luminance": 0.10253
}

Semantic roles & 50–950 ramp

primary

#643CCB

secondary

#BFD192

accent

#E147B6

background

#FAF7FD

surface

#F3EDFB

border

#CDC8D4

text

#0F0815

muted

#7F7B83

Preview Lab

Preview with #643CCB

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

Preview Lab → · Contrast checker → · Palette generator →