#644FD1#644FD1

#644FD1 is a mid, vivid blue. Relative luminance 0.129; OKLCH L 52.3% C 0.192 H 285.0°. Best body text is #FFFFFF at 5.86:1 contrast (WCAG AA passes).

Color values

HEX	#644FD1
RGB	rgb(100, 79, 209)
HSL	hsl(250, 59%, 56%)
HSV	hsv(250, 62%, 82%)
CMYK	cmyk(52.2%, 62.2%, 0%, 18%)
CIE-LAB	lab(42.62, 42.52, -64.50)
CIE-LCH	lch(42.62, 77.25, 303.39°)
OKLab	oklab(52.32% 0.0497 -0.185)
OKLCH	oklch(52.32% 0.192 285)
XYZ	xyz(19.5567, 12.9037, 61.7694)
Luminance	0.1290 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#644FD1 #BCD14F

analogous

#4F7BD1 #644FD1 #A54FD1

triadic

#644FD1 #D1644F #4FD164

tetradic

#644FD1 #D14F7B #BCD14F #4FD1A5

square

#644FD1 #D14F7B #BCD14F #4FD1A5

split-complementary

#644FD1 #D1A54F #7BD14F

monochromatic

#322283 #442FB4 #644FD1 #8F80DE #B9B0EA

Accessibility & contrast

On white

5.86

#644FD1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.58

#644FD1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #644FD1

5.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##644FD1	#FFFFFF	#000000	##FFFFFF
##644FD1	1.00	5.86	3.58	5.86
#FFFFFF	5.86	1.00	21.00	1.00
#000000	3.58	21.00	1.00	21.00
##FFFFFF	5.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0068D5

Deuteranopia (green-blind)

#0061CE

Tritanopia (blue-blind)

#386E89

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #644fd1;
/* rgb */ color: rgb(100, 79, 209);
/* oklch */ color: oklch(52.3% 0.192 285.0);

Tailwind

colors: {
  custom: {
    50: '#9981e0',
    500: '#644fd1',
    950: '#000000',
  },
}

SCSS

$custom: #644fd1;
$custom-light: #9981e0;
$custom-dark: #000000;

JSON

{
  "hex": "#644fd1",
  "rgb": {
    "r": 100,
    "g": 79,
    "b": 209
  },
  "hsl": {
    "h": 249.692,
    "s": 58.559,
    "l": 56.471
  },
  "oklch": {
    "l": 0.52323,
    "c": 0.19153,
    "h": 285
  },
  "luminance": 0.12905
}

Semantic roles & 50–950 ramp

primary

#644FD1

secondary

#D0D9A3

accent

#E246C9

background

#FAF8FD

surface

#F3EFFB

border

#CDCAD4

text

#0F0A15

muted

#7F7C83

Preview Lab

Preview with #644FD1

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

Preview Lab → · Contrast checker → · Palette generator →