#644DDF#644DDF

#644DDF is a mid, highly saturated blue. Relative luminance 0.133; OKLCH L 53.1% C 0.211 H 283.7°. Best body text is #FFFFFF at 5.72:1 contrast (WCAG AA passes).

Color values

HEX	#644DDF
RGB	rgb(100, 77, 223)
HSL	hsl(249, 70%, 59%)
HSV	hsv(249, 65%, 87%)
CMYK	cmyk(55.2%, 65.5%, 0%, 12.5%)
CIE-LAB	lab(43.28, 47.84, -71.44)
CIE-LCH	lch(43.28, 85.98, 303.81°)
OKLab	oklab(53.14% 0.0502 -0.2054)
OKLCH	oklch(53.14% 0.211 283.7)
XYZ	xyz(21.2246, 13.3435, 71.2549)
Luminance	0.1335 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#644DDF #C8DF4D

analogous

#4D7FDF #644DDF #AD4DDF

triadic

#644DDF #DF644D #4DDF64

tetradic

#644DDF #DF4D7F #C8DF4D #4DDFAD

square

#644DDF #DF4D7F #C8DF4D #4DDFAD

split-complementary

#644DDF #DFAD4D #7FDF4D

monochromatic

#2F1B97 #3F24CA #644DDF #9181E8 #BEB5F2

Accessibility & contrast

On white

5.72

#644DDF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.67

#644DDF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #644DDF

5.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##644DDF	#FFFFFF	#000000	##FFFFFF
##644DDF	1.00	5.72	3.67	5.72
#FFFFFF	5.72	1.00	21.00	1.00
#000000	3.67	21.00	1.00	21.00
##FFFFFF	5.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006BE4

Deuteranopia (green-blind)

#0061DC

Tritanopia (blue-blind)

#29728F

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #644ddf;
/* rgb */ color: rgb(100, 77, 223);
/* oklch */ color: oklch(53.1% 0.211 283.7);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#644ddf",
  "rgb": {
    "r": 100,
    "g": 77,
    "b": 223
  },
  "hsl": {
    "h": 249.452,
    "s": 69.524,
    "l": 58.824
  },
  "oklch": {
    "l": 0.53139,
    "c": 0.2114,
    "h": 283.7
  },
  "luminance": 0.13345
}

Semantic roles & 50–950 ramp

primary

#644DDF

secondary

#D8E1A7

accent

#EC3BD0

background

#FAF7FE

surface

#F4EEFD

border

#CEC9D5

text

#0F0A16

muted

#7F7C84

Preview Lab

Preview with #644DDF

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

Preview Lab → · Contrast checker → · Palette generator →