#644ECB#644ECB

#644ECB is a mid, vivid violet. Relative luminance 0.125; OKLCH L 51.7% C 0.185 H 286.0°. Best body text is #FFFFFF at 6.01:1 contrast (WCAG AA passes).

Color values

HEX	#644ECB
RGB	rgb(100, 78, 203)
HSL	hsl(251, 55%, 55%)
HSV	hsv(251, 62%, 80%)
CMYK	cmyk(50.7%, 61.6%, 0%, 20.4%)
CIE-LAB	lab(41.95, 41.30, -62.12)
CIE-LCH	lch(41.95, 74.60, 303.62°)
OKLab	oklab(51.7% 0.0511 -0.178)
OKLCH	oklch(51.7% 0.185 286)
XYZ	xyz(18.7562, 12.4690, 57.9068)
Luminance	0.1247 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#644ECB #B5CB4E

analogous

#4E76CB #644ECB #A24ECB

triadic

#644ECB #CB644E #4ECB64

tetradic

#644ECB #CB4E76 #B5CB4E #4ECBA2

square

#644ECB #CB4E76 #B5CB4E #4ECBA2

split-complementary

#644ECB #CBA24E #76CB4E

monochromatic

#33247B #4732AA #644ECB #8D7DD9 #B7ADE7

Accessibility & contrast

On white

6.01

#644ECB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.49

#644ECB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #644ECB

6.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##644ECB	#FFFFFF	#000000	##FFFFFF
##644ECB	1.00	6.01	3.49	6.01
#FFFFFF	6.01	1.00	21.00	1.00
#000000	3.49	21.00	1.00	21.00
##FFFFFF	6.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0066CF

Deuteranopia (green-blind)

#005FC8

Tritanopia (blue-blind)

#3D6C85

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #644ecb;
/* rgb */ color: rgb(100, 78, 203);
/* oklch */ color: oklch(51.7% 0.185 286.0);

Tailwind

colors: {
  custom: {
    50: '#9881dc',
    500: '#644ecb',
    950: '#000000',
  },
}

SCSS

$custom: #644ecb;
$custom-light: #9881dc;
$custom-dark: #000000;

JSON

{
  "hex": "#644ecb",
  "rgb": {
    "r": 100,
    "g": 78,
    "b": 203
  },
  "hsl": {
    "h": 250.56,
    "s": 54.585,
    "l": 55.098
  },
  "oklch": {
    "l": 0.51697,
    "c": 0.18518,
    "h": 286
  },
  "luminance": 0.1247
}

Semantic roles & 50–950 ramp

primary

#644ECB

secondary

#CBD5A0

accent

#DE4AC4

background

#F9F7FD

surface

#F2EEFB

border

#CCC9D4

text

#0F0A15

muted

#7E7C83

Preview Lab

Preview with #644ECB

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

Preview Lab → · Contrast checker → · Palette generator →