#644FD6#644FD6

#644FD6 is a mid, vivid blue. Relative luminance 0.132; OKLCH L 52.7% C 0.198 H 284.4°. Best body text is #FFFFFF at 5.78:1 contrast (WCAG AA passes).

Color values

HEX	#644FD6
RGB	rgb(100, 79, 214)
HSL	hsl(249, 62%, 57%)
HSV	hsv(249, 63%, 84%)
CMYK	cmyk(53.3%, 63.1%, 0%, 16.1%)
CIE-LAB	lab(43.00, 44.02, -66.75)
CIE-LCH	lch(43.00, 79.96, 303.40°)
OKLab	oklab(52.72% 0.0493 -0.1916)
OKLCH	oklch(52.72% 0.198 284.4)
XYZ	xyz(20.1854, 13.1552, 65.0809)
Luminance	0.1316 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#644FD6 #C1D64F

analogous

#4F7ED6 #644FD6 #A74FD6

triadic

#644FD6 #D6644F #4FD664

tetradic

#644FD6 #D64F7E #C1D64F #4FD6A7

square

#644FD6 #D64F7E #C1D64F #4FD6A7

split-complementary

#644FD6 #D6A74F #7ED64F

monochromatic

#31208A #422CBC #644FD6 #9081E2 #BBB2ED

Accessibility & contrast

On white

5.78

#644FD6 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.63

#644FD6 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #644FD6

5.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##644FD6	#FFFFFF	#000000	##FFFFFF
##644FD6	1.00	5.78	3.63	5.78
#FFFFFF	5.78	1.00	21.00	1.00
#000000	3.63	21.00	1.00	21.00
##FFFFFF	5.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006ADA

Deuteranopia (green-blind)

#0061D3

Tritanopia (blue-blind)

#34708B

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #644fd6;
/* rgb */ color: rgb(100, 79, 214);
/* oklch */ color: oklch(52.7% 0.198 284.4);

Tailwind

colors: {
  custom: {
    50: '#9a81e4',
    500: '#644fd6',
    950: '#000000',
  },
}

SCSS

$custom: #644fd6;
$custom-light: #9a81e4;
$custom-dark: #000000;

JSON

{
  "hex": "#644fd6",
  "rgb": {
    "r": 100,
    "g": 79,
    "b": 214
  },
  "hsl": {
    "h": 249.333,
    "s": 62.212,
    "l": 57.451
  },
  "oklch": {
    "l": 0.52717,
    "c": 0.19784,
    "h": 284.4
  },
  "luminance": 0.13156
}

Semantic roles & 50–950 ramp

primary

#644FD6

secondary

#D3DCA5

accent

#E543CC

background

#FAF8FE

surface

#F3EFFC

border

#CDCAD5

text

#0F0A16

muted

#7F7C84

Preview Lab

Preview with #644FD6

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

Preview Lab → · Contrast checker → · Palette generator →