#644FAC#644FAC

#644FAC is a mid, vivid violet. Relative luminance 0.113; OKLCH L 49.6% C 0.143 H 290.6°. Best body text is #FFFFFF at 6.45:1 contrast (WCAG AA passes).

Color values

HEX	#644FAC
RGB	rgb(100, 79, 172)
HSL	hsl(254, 37%, 49%)
HSV	hsv(254, 54%, 67%)
CMYK	cmyk(41.9%, 54.1%, 0%, 32.5%)
CIE-LAB	lab(40.05, 31.56, -47.06)
CIE-LCH	lch(40.05, 56.67, 303.85°)
OKLab	oklab(49.62% 0.0504 -0.1337)
OKLCH	oklch(49.62% 0.143 290.6)
XYZ	xyz(15.4959, 11.2794, 40.3824)
Luminance	0.1128 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#644FAC #97AC4F

analogous

#4F69AC #644FAC #934FAC

triadic

#644FAC #AC644F #4FAC64

tetradic

#644FAC #AC4F69 #97AC4F #4FAC93

square

#644FAC #AC4F69 #97AC4F #4FAC93

split-complementary

#644FAC #AC934F #69AC4F

monochromatic

#332858 #4C3C82 #644FAC #8877C1 #ADA1D4

Accessibility & contrast

On white

6.45

#644FAC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.26

#644FAC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #644FAC

6.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##644FAC	#FFFFFF	#000000	##FFFFFF
##644FAC	1.00	6.45	3.26	6.45
#FFFFFF	6.45	1.00	21.00	1.00
#000000	3.26	21.00	1.00	21.00
##FFFFFF	6.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2360AF

Deuteranopia (green-blind)

#275CAA

Tritanopia (blue-blind)

#506376

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #644fac;
/* rgb */ color: rgb(100, 79, 172);
/* oklch */ color: oklch(49.6% 0.143 290.6);

Tailwind

colors: {
  custom: {
    50: '#9481c5',
    500: '#644fac',
    950: '#000000',
  },
}

SCSS

$custom: #644fac;
$custom-light: #9481c5;
$custom-dark: #000000;

JSON

{
  "hex": "#644fac",
  "rgb": {
    "r": 100,
    "g": 79,
    "b": 172
  },
  "hsl": {
    "h": 253.548,
    "s": 37.052,
    "l": 49.216
  },
  "oklch": {
    "l": 0.49616,
    "c": 0.14287,
    "h": 290.6
  },
  "luminance": 0.1128
}

Semantic roles & 50–950 ramp

primary

#644FAC

secondary

#B7C196

accent

#CD5BB3

background

#F9F7FC

surface

#F2EEF8

border

#CCC9D1

text

#0E0A13

muted

#7E7C82

Preview Lab

Preview with #644FAC

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

Preview Lab → · Contrast checker → · Palette generator →