#644CDF#644CDF

#644CDF is a mid, highly saturated blue. Relative luminance 0.132; OKLCH L 53.0% C 0.213 H 283.9°. Best body text is #FFFFFF at 5.77:1 contrast (WCAG AA passes).

Color values

HEX	#644CDF
RGB	rgb(100, 76, 223)
HSL	hsl(250, 70%, 59%)
HSV	hsv(250, 66%, 87%)
CMYK	cmyk(55.2%, 65.9%, 0%, 12.5%)
CIE-LAB	lab(43.07, 48.40, -71.78)
CIE-LCH	lch(43.07, 86.57, 303.99°)
OKLab	oklab(52.99% 0.0511 -0.2063)
OKLCH	oklch(52.99% 0.213 283.9)
XYZ	xyz(21.1552, 13.2047, 71.2317)
Luminance	0.1321 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#644CDF #C7DF4C

analogous

#4C7DDF #644CDF #AD4CDF

triadic

#644CDF #DF644C #4CDF64

tetradic

#644CDF #DF4C7D #C7DF4C #4CDFAD

square

#644CDF #DF4C7D #C7DF4C #4CDFAD

split-complementary

#644CDF #DFAD4C #7DDF4C

monochromatic

#2F1B96 #3F24CA #644CDF #9180E8 #BEB4F2

Accessibility & contrast

On white

5.77

#644CDF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.64

#644CDF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #644CDF

5.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##644CDF	#FFFFFF	#000000	##FFFFFF
##644CDF	1.00	5.77	3.64	5.77
#FFFFFF	5.77	1.00	21.00	1.00
#000000	3.64	21.00	1.00	21.00
##FFFFFF	5.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006AE4

Deuteranopia (green-blind)

#0061DC

Tritanopia (blue-blind)

#29718F

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #644cdf;
/* rgb */ color: rgb(100, 76, 223);
/* oklch */ color: oklch(53.0% 0.213 283.9);

Tailwind

colors: {
  custom: {
    50: '#9b80ea',
    500: '#644cdf',
    950: '#000000',
  },
}

SCSS

$custom: #644cdf;
$custom-light: #9b80ea;
$custom-dark: #000000;

JSON

{
  "hex": "#644cdf",
  "rgb": {
    "r": 100,
    "g": 76,
    "b": 223
  },
  "hsl": {
    "h": 249.796,
    "s": 69.668,
    "l": 58.627
  },
  "oklch": {
    "l": 0.5299,
    "c": 0.21258,
    "h": 283.9
  },
  "luminance": 0.13206
}

Semantic roles & 50–950 ramp

primary

#644CDF

secondary

#D7E0A6

accent

#EC3BD0

background

#FAF7FE

surface

#F4EEFD

border

#CEC9D5

text

#0F0A16

muted

#7F7C84

Preview Lab

Preview with #644CDF

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

Preview Lab → · Contrast checker → · Palette generator →