#644EFF#644EFF

#644EFF is a mid, highly saturated blue. Relative luminance 0.154; OKLCH L 56.0% C 0.248 H 280.4°. Best body text is #FFFFFF at 5.15:1 contrast (WCAG AA passes).

Color values

HEX	#644EFF
RGB	rgb(100, 78, 255)
HSL	hsl(247, 100%, 65%)
HSV	hsv(247, 69%, 100%)
CMYK	cmyk(60.8%, 69.4%, 0%, 0%)
CIE-LAB	lab(46.15, 56.81, -84.75)
CIE-LCH	lch(46.15, 102.03, 303.83°)
OKLab	oklab(56.02% 0.0447 -0.2444)
OKLCH	oklch(56.02% 0.248 280.4)
XYZ	xyz(26.0242, 15.3762, 96.1849)
Luminance	0.1538 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#644EFF #E9FF4E

analogous

#4E90FF #644EFF #BD4EFF

triadic

#644EFF #FF644E #4EFF64

tetradic

#644EFF #FF4E90 #E9FF4E #4EFFBD

square

#644EFF #FF4E90 #E9FF4E #4EFFBD

split-complementary

#644EFF #FFBD4E #90FF4E

monochromatic

#1A00D3 #2E11FF #644EFF #9A8BFF #CFC8FF

Accessibility & contrast

On white

5.15

#644EFF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.08

#644EFF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #644EFF

5.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##644EFF	#FFFFFF	#000000	##FFFFFF
##644EFF	1.00	5.15	4.08	5.15
#FFFFFF	5.15	1.00	21.00	1.00
#000000	4.08	21.00	1.00	21.00
##FFFFFF	5.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0074FF

Deuteranopia (green-blind)

#0067FC

Tritanopia (blue-blind)

#007EA1

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #644eff;
/* rgb */ color: rgb(100, 78, 255);
/* oklch */ color: oklch(56.0% 0.248 280.4);

Tailwind

colors: {
  custom: {
    50: '#a082ff',
    500: '#644eff',
    950: '#000000',
  },
}

SCSS

$custom: #644eff;
$custom-light: #a082ff;
$custom-dark: #000000;

JSON

{
  "hex": "#644eff",
  "rgb": {
    "r": 100,
    "g": 78,
    "b": 255
  },
  "hsl": {
    "h": 247.458,
    "s": 100,
    "l": 65.294
  },
  "oklch": {
    "l": 0.5602,
    "c": 0.24845,
    "h": 280.4
  },
  "luminance": 0.15378
}

Semantic roles & 50–950 ramp

primary

#644EFF

secondary

#EBF2B7

accent

#E600C9

background

#FAF8FF

surface

#F4EFFF

border

#CECAD7

text

#100B18

muted

#7F7C86

Preview Lab

Preview with #644EFF

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

Preview Lab → · Contrast checker → · Palette generator →