#644FCB#644FCB

#644FCB is a mid, vivid violet. Relative luminance 0.126; OKLCH L 51.9% C 0.184 H 285.8°. Best body text is #FFFFFF at 5.96:1 contrast (WCAG AA passes).

Color values

HEX	#644FCB
RGB	rgb(100, 79, 203)
HSL	hsl(250, 54%, 55%)
HSV	hsv(250, 61%, 80%)
CMYK	cmyk(50.7%, 61.1%, 0%, 20.4%)
CIE-LAB	lab(42.17, 40.72, -61.76)
CIE-LCH	lch(42.17, 73.98, 303.40°)
OKLab	oklab(51.86% 0.0501 -0.1769)
OKLCH	oklch(51.86% 0.184 285.8)
XYZ	xyz(18.8278, 12.6121, 57.9306)
Luminance	0.1261 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#644FCB #B6CB4F

analogous

#4F78CB #644FCB #A24FCB

triadic

#644FCB #CB644F #4FCB64

tetradic

#644FCB #CB4F78 #B6CB4F #4FCBA2

square

#644FCB #CB4F78 #B6CB4F #4FCBA2

split-complementary

#644FCB #CBA24F #78CB4F

monochromatic

#33247B #4732AA #644FCB #8E7ED9 #B7ADE7

Accessibility & contrast

On white

5.96

#644FCB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.52

#644FCB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #644FCB

5.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##644FCB	#FFFFFF	#000000	##FFFFFF
##644FCB	1.00	5.96	3.52	5.96
#FFFFFF	5.96	1.00	21.00	1.00
#000000	3.52	21.00	1.00	21.00
##FFFFFF	5.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0067CF

Deuteranopia (green-blind)

#0060C8

Tritanopia (blue-blind)

#3D6C85

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #644fcb;
/* rgb */ color: rgb(100, 79, 203);
/* oklch */ color: oklch(51.9% 0.184 285.8);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#644fcb",
  "rgb": {
    "r": 100,
    "g": 79,
    "b": 203
  },
  "hsl": {
    "h": 250.161,
    "s": 54.386,
    "l": 55.294
  },
  "oklch": {
    "l": 0.51858,
    "c": 0.18389,
    "h": 285.8
  },
  "luminance": 0.12613
}

Semantic roles & 50–950 ramp

primary

#644FCB

secondary

#CCD5A1

accent

#DE4AC5

background

#F9F7FD

surface

#F2EEFB

border

#CCC9D4

text

#0F0A15

muted

#7E7C83

Preview Lab

Preview with #644FCB

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

Preview Lab → · Contrast checker → · Palette generator →