#643BCB#643BCB

#643BCB is a mid, highly saturated violet. Relative luminance 0.101; OKLCH L 48.9% C 0.208 H 289.4°. Best body text is #FFFFFF at 6.93:1 contrast (WCAG AA passes).

Color values

HEX	#643BCB
RGB	rgb(100, 59, 203)
HSL	hsl(257, 58%, 51%)
HSV	hsv(257, 71%, 80%)
CMYK	cmyk(50.7%, 70.9%, 0%, 20.4%)
CIE-LAB	lab(38.11, 51.75, -68.39)
CIE-LCH	lch(38.11, 85.76, 307.11°)
OKLab	oklab(48.93% 0.0692 -0.1964)
OKLCH	oklch(48.93% 0.208 289.4)
XYZ	xyz(17.5959, 10.1483, 57.5200)
Luminance	0.1015 (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

#643BCB #A2CB3B

analogous

#3B5ACB #643BCB #AC3BCB

triadic

#643BCB #CB643B #3BCB64

tetradic

#643BCB #CB3B5A #A2CB3B #3BCBAC

square

#643BCB #CB3B5A #A2CB3B #3BCBAC

split-complementary

#643BCB #CBAC3B #5ACB3B

monochromatic

#341D6E #4B2A9F #643BCB #8A6BD8 #B19CE5

Accessibility & contrast

On white

6.93

#643BCB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.03

#643BCB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #643BCB

6.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643BCB	#FFFFFF	#000000	##FFFFFF
##643BCB	1.00	6.93	3.03	6.93
#FFFFFF	6.93	1.00	21.00	1.00
#000000	3.03	21.00	1.00	21.00
##FFFFFF	6.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005CCF

Deuteranopia (green-blind)

#0056C8

Tritanopia (blue-blind)

#3F617F

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #643bcb;
/* rgb */ color: rgb(100, 59, 203);
/* oklch */ color: oklch(48.9% 0.208 289.4);

Tailwind

colors: {
  custom: {
    50: '#9a74dc',
    500: '#643bcb',
    950: '#000000',
  },
}

SCSS

$custom: #643bcb;
$custom-light: #9a74dc;
$custom-dark: #000000;

JSON

{
  "hex": "#643bcb",
  "rgb": {
    "r": 100,
    "g": 59,
    "b": 203
  },
  "hsl": {
    "h": 257.083,
    "s": 58.065,
    "l": 51.373
  },
  "oklch": {
    "l": 0.48926,
    "c": 0.20823,
    "h": 289.4
  },
  "luminance": 0.10149
}

Semantic roles & 50–950 ramp

primary

#643BCB

secondary

#BFD191

accent

#E147B5

background

#FAF7FD

surface

#F3EDFB

border

#CDC8D4

text

#0F0815

muted

#7F7B83

Preview Lab

Preview with #643BCB

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

Preview Lab → · Contrast checker → · Palette generator →