#644FDA#644FDA

#644FDA is a mid, highly saturated blue. Relative luminance 0.134; OKLCH L 53.0% C 0.203 H 284.0°. Best body text is #FFFFFF at 5.72:1 contrast (WCAG AA passes).

Color values

HEX	#644FDA
RGB	rgb(100, 79, 218)
HSL	hsl(249, 65%, 58%)
HSV	hsv(249, 64%, 85%)
CMYK	cmyk(54.1%, 63.8%, 0%, 14.5%)
CIE-LAB	lab(43.30, 45.22, -68.54)
CIE-LCH	lch(43.30, 82.11, 303.41°)
OKLab	oklab(53.04% 0.0489 -0.1968)
OKLCH	oklch(53.04% 0.203 284)
XYZ	xyz(20.7026, 13.3620, 67.8043)
Luminance	0.1336 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#644FDA #C5DA4F

analogous

#4F7FDA #644FDA #A94FDA

triadic

#644FDA #DA644F #4FDA64

tetradic

#644FDA #DA4F7F #C5DA4F #4FDAA9

square

#644FDA #DA4F7F #C5DA4F #4FDAA9

split-complementary

#644FDA #DAA94F #7FDA4F

monochromatic

#301E90 #4029C3 #644FDA #9182E5 #BDB4EF

Accessibility & contrast

On white

5.72

#644FDA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.67

#644FDA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #644FDA

5.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##644FDA	#FFFFFF	#000000	##FFFFFF
##644FDA	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)

#006BDE

Deuteranopia (green-blind)

#0062D7

Tritanopia (blue-blind)

#2F718D

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #644fda;
/* rgb */ color: rgb(100, 79, 218);
/* oklch */ color: oklch(53.0% 0.203 284.0);

Tailwind

colors: {
  custom: {
    50: '#9a81e6',
    500: '#644fda',
    950: '#000000',
  },
}

SCSS

$custom: #644fda;
$custom-light: #9a81e6;
$custom-dark: #000000;

JSON

{
  "hex": "#644fda",
  "rgb": {
    "r": 100,
    "g": 79,
    "b": 218
  },
  "hsl": {
    "h": 249.065,
    "s": 65.258,
    "l": 58.235
  },
  "oklch": {
    "l": 0.53037,
    "c": 0.20284,
    "h": 284
  },
  "luminance": 0.13363
}

Semantic roles & 50–950 ramp

primary

#644FDA

secondary

#D6DEA7

accent

#E840CF

background

#FAF8FE

surface

#F4EFFC

border

#CECAD5

text

#0F0A16

muted

#7F7C84

Preview Lab

Preview with #644FDA

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

Preview Lab → · Contrast checker → · Palette generator →