#644FD3#644FD3

#644FD3 is a mid, vivid blue. Relative luminance 0.130; OKLCH L 52.5% C 0.194 H 284.8°. Best body text is #FFFFFF at 5.83:1 contrast (WCAG AA passes).

Color values

HEX	#644FD3
RGB	rgb(100, 79, 211)
HSL	hsl(250, 60%, 57%)
HSV	hsv(250, 63%, 83%)
CMYK	cmyk(52.6%, 62.6%, 0%, 17.3%)
CIE-LAB	lab(42.77, 43.12, -65.40)
CIE-LCH	lch(42.77, 78.34, 303.39°)
OKLab	oklab(52.48% 0.0495 -0.1876)
OKLCH	oklch(52.48% 0.194 284.8)
XYZ	xyz(19.8058, 13.0034, 63.0817)
Luminance	0.1300 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#644FD3 #BED34F

analogous

#4F7CD3 #644FD3 #A64FD3

triadic

#644FD3 #D3644F #4FD364

tetradic

#644FD3 #D34F7C #BED34F #4FD3A6

square

#644FD3 #D34F7C #BED34F #4FD3A6

split-complementary

#644FD3 #D3A64F #7CD34F

monochromatic

#322286 #442EB7 #644FD3 #8F80DF #BAB1EB

Accessibility & contrast

On white

5.83

#644FD3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.60

#644FD3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #644FD3

5.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##644FD3	#FFFFFF	#000000	##FFFFFF
##644FD3	1.00	5.83	3.60	5.83
#FFFFFF	5.83	1.00	21.00	1.00
#000000	3.60	21.00	1.00	21.00
##FFFFFF	5.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0069D7

Deuteranopia (green-blind)

#0061D0

Tritanopia (blue-blind)

#366F8A

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #644fd3;
/* rgb */ color: rgb(100, 79, 211);
/* oklch */ color: oklch(52.5% 0.194 284.8);

Tailwind

colors: {
  custom: {
    50: '#9981e1',
    500: '#644fd3',
    950: '#000000',
  },
}

SCSS

$custom: #644fd3;
$custom-light: #9981e1;
$custom-dark: #000000;

JSON

{
  "hex": "#644fd3",
  "rgb": {
    "r": 100,
    "g": 79,
    "b": 211
  },
  "hsl": {
    "h": 249.545,
    "s": 60,
    "l": 56.863
  },
  "oklch": {
    "l": 0.5248,
    "c": 0.19406,
    "h": 284.8
  },
  "luminance": 0.13004
}

Semantic roles & 50–950 ramp

primary

#644FD3

secondary

#D1DAA4

accent

#E345CA

background

#FAF8FD

surface

#F3EFFB

border

#CDCAD4

text

#0F0A15

muted

#7F7C83

Preview Lab

Preview with #644FD3

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

Preview Lab → · Contrast checker → · Palette generator →