#643BCF#643BCF

#643BCF is a mid, highly saturated violet. Relative luminance 0.103; OKLCH L 49.3% C 0.213 H 288.8°. Best body text is #FFFFFF at 6.84:1 contrast (WCAG AA passes).

Color values

HEX	#643BCF
RGB	rgb(100, 59, 207)
HSL	hsl(257, 61%, 52%)
HSV	hsv(257, 71%, 81%)
CMYK	cmyk(51.7%, 71.5%, 0%, 18.8%)
CIE-LAB	lab(38.45, 52.86, -70.15)
CIE-LCH	lch(38.45, 87.83, 307.00°)
OKLab	oklab(49.27% 0.0684 -0.2015)
OKLCH	oklch(49.27% 0.213 288.8)
XYZ	xyz(18.0787, 10.3414, 60.0629)
Luminance	0.1034 (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

#643BCF #A6CF3B

analogous

#3B5CCF #643BCF #AE3BCF

triadic

#643BCF #CF643B #3BCF64

tetradic

#643BCF #CF3B5C #A6CF3B #3BCFAE

square

#643BCF #CF3B5C #A6CF3B #3BCFAE

split-complementary

#643BCF #CFAE3B #5CCF3B

monochromatic

#341C73 #4B28A5 #643BCF #8B6CDB #B29DE7

Accessibility & contrast

On white

6.84

#643BCF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.07

#643BCF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #643BCF

6.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643BCF	#FFFFFF	#000000	##FFFFFF
##643BCF	1.00	6.84	3.07	6.84
#FFFFFF	6.84	1.00	21.00	1.00
#000000	3.07	21.00	1.00	21.00
##FFFFFF	6.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005ED3

Deuteranopia (green-blind)

#0057CC

Tritanopia (blue-blind)

#3C6281

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #643bcf;
/* rgb */ color: rgb(100, 59, 207);
/* oklch */ color: oklch(49.3% 0.213 288.8);

Tailwind

colors: {
  custom: {
    50: '#9a75df',
    500: '#643bcf',
    950: '#000000',
  },
}

SCSS

$custom: #643bcf;
$custom-light: #9a75df;
$custom-dark: #000000;

JSON

{
  "hex": "#643bcf",
  "rgb": {
    "r": 100,
    "g": 59,
    "b": 207
  },
  "hsl": {
    "h": 256.622,
    "s": 60.656,
    "l": 52.157
  },
  "oklch": {
    "l": 0.49273,
    "c": 0.21284,
    "h": 288.8
  },
  "luminance": 0.10342
}

Semantic roles & 50–950 ramp

primary

#643BCF

secondary

#C1D393

accent

#E444B8

background

#FAF7FD

surface

#F4EDFB

border

#CEC8D4

text

#0F0815

muted

#7F7B83

Preview Lab

Preview with #643BCF

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

Preview Lab → · Contrast checker → · Palette generator →