#644AFF#644AFF

#644AFF is a mid, highly saturated blue. Relative luminance 0.148; OKLCH L 55.5% C 0.252 H 280.8°. Best body text is #FFFFFF at 5.30:1 contrast (WCAG AA passes).

Color values

HEX	#644AFF
RGB	rgb(100, 74, 255)
HSL	hsl(249, 100%, 65%)
HSV	hsv(249, 71%, 100%)
CMYK	cmyk(60.8%, 71%, 0%, 0%)
CIE-LAB	lab(45.39, 58.90, -85.99)
CIE-LCH	lch(45.39, 104.23, 304.41°)
OKLab	oklab(55.48% 0.0474 -0.248)
OKLCH	oklch(55.48% 0.252 280.8)
XYZ	xyz(25.7486, 14.8250, 96.0930)
Luminance	0.1483 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#644AFF #E5FF4A

analogous

#4A8AFF #644AFF #BF4AFF

triadic

#644AFF #FF644A #4AFF64

tetradic

#644AFF #FF4A8A #E5FF4A #4AFFBF

square

#644AFF #FF4A8A #E5FF4A #4AFFBF

split-complementary

#644AFF #FFBF4A #8AFF4A

monochromatic

#1E00CF #300DFF #644AFF #9887FF #CDC4FF

Accessibility & contrast

On white

5.30

#644AFF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.97

#644AFF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #644AFF

5.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##644AFF	#FFFFFF	#000000	##FFFFFF
##644AFF	1.00	5.30	3.97	5.30
#FFFFFF	5.30	1.00	21.00	1.00
#000000	3.97	21.00	1.00	21.00
##FFFFFF	5.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0072FF

Deuteranopia (green-blind)

#0065FC

Tritanopia (blue-blind)

#007CA0

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #644aff;
/* rgb */ color: rgb(100, 74, 255);
/* oklch */ color: oklch(55.5% 0.252 280.8);

Tailwind

colors: {
  custom: {
    50: '#a07fff',
    500: '#644aff',
    950: '#000000',
  },
}

SCSS

$custom: #644aff;
$custom-light: #a07fff;
$custom-dark: #000000;

JSON

{
  "hex": "#644aff",
  "rgb": {
    "r": 100,
    "g": 74,
    "b": 255
  },
  "hsl": {
    "h": 248.619,
    "s": 100,
    "l": 64.51
  },
  "oklch": {
    "l": 0.55485,
    "c": 0.25248,
    "h": 280.8
  },
  "luminance": 0.14827
}

Semantic roles & 50–950 ramp

primary

#644AFF

secondary

#E9F2B3

accent

#E600C5

background

#FAF7FF

surface

#F4EEFF

border

#CEC9D7

text

#100A18

muted

#7F7C86

Preview Lab

Preview with #644AFF

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

Preview Lab → · Contrast checker → · Palette generator →