#643BC4#643BC4

#643BC4 is a mid, highly saturated violet. Relative luminance 0.098; OKLCH L 48.3% C 0.200 H 290.7°. Best body text is #FFFFFF at 7.08:1 contrast (WCAG AA passes).

Color values

HEX	#643BC4
RGB	rgb(100, 59, 196)
HSL	hsl(258, 54%, 50%)
HSV	hsv(258, 70%, 77%)
CMYK	cmyk(49%, 69.9%, 0%, 23.1%)
CIE-LAB	lab(37.52, 49.80, -65.27)
CIE-LCH	lch(37.52, 82.10, 307.34°)
OKLab	oklab(48.33% 0.0706 -0.1872)
OKLCH	oklch(48.33% 0.2 290.7)
XYZ	xyz(16.7805, 9.8221, 53.2255)
Luminance	0.0982 (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

#643BC4 #9BC43B

analogous

#3B57C4 #643BC4 #A83BC4

triadic

#643BC4 #C4643B #3BC464

tetradic

#643BC4 #C43B57 #9BC43B #3BC4A8

square

#643BC4 #C43B57 #9BC43B #3BC4A8

split-complementary

#643BC4 #C4A83B #57C43B

monochromatic

#341F66 #4C2D95 #643BC4 #896AD2 #AE99E0

Accessibility & contrast

On white

7.08

#643BC4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.96

#643BC4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643BC4

7.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643BC4	#FFFFFF	#000000	##FFFFFF
##643BC4	1.00	7.08	2.96	7.08
#FFFFFF	7.08	1.00	21.00	1.00
#000000	2.96	21.00	1.00	21.00
##FFFFFF	7.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005BC8

Deuteranopia (green-blind)

#0055C1

Tritanopia (blue-blind)

#445E7B

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #643bc4;
/* rgb */ color: rgb(100, 59, 196);
/* oklch */ color: oklch(48.3% 0.200 290.7);

Tailwind

colors: {
  custom: {
    50: '#9974d7',
    500: '#643bc4',
    950: '#000000',
  },
}

SCSS

$custom: #643bc4;
$custom-light: #9974d7;
$custom-dark: #000000;

JSON

{
  "hex": "#643bc4",
  "rgb": {
    "r": 100,
    "g": 59,
    "b": 196
  },
  "hsl": {
    "h": 257.956,
    "s": 53.725,
    "l": 50
  },
  "oklch": {
    "l": 0.48328,
    "c": 0.2001,
    "h": 290.7
  },
  "luminance": 0.09823
}

Semantic roles & 50–950 ramp

primary

#643BC4

secondary

#BACC8F

accent

#DD4BB1

background

#F9F7FD

surface

#F2EDFA

border

#CCC8D3

text

#0F0814

muted

#7E7B83

Preview Lab

Preview with #643BC4

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

Preview Lab → · Contrast checker → · Palette generator →