#645CE4#645CE4

#645CE4 is a mid, vivid blue. Relative luminance 0.160; OKLCH L 55.9% C 0.199 H 280.4°. Best body text is #FFFFFF at 5.01:1 contrast (WCAG AA passes).

Color values

HEX	#645CE4
RGB	rgb(100, 92, 228)
HSL	hsl(244, 72%, 63%)
HSV	hsv(244, 60%, 89%)
CMYK	cmyk(56.1%, 59.6%, 0%, 10.6%)
CIE-LAB	lab(46.93, 40.71, -68.33)
CIE-LCH	lch(46.93, 79.54, 300.79°)
OKLab	oklab(55.92% 0.036 -0.1962)
OKLCH	oklch(55.92% 0.199 280.4)
XYZ	xyz(23.0819, 15.9635, 75.2487)
Luminance	0.1596 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645CE4 #DCE45C

analogous

#5C98E4 #645CE4 #A85CE4

triadic

#645CE4 #E4645C #5CE464

tetradic

#645CE4 #E45C98 #DCE45C #5CE4A8

square

#645CE4 #E45C98 #DCE45C #5CE4A8

split-complementary

#645CE4 #E4A85C #98E45C

monochromatic

#241CAA #3227DB #645CE4 #9691ED #C8C5F5

Accessibility & contrast

On white

5.01

#645CE4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.19

#645CE4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645CE4

5.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645CE4	#FFFFFF	#000000	##FFFFFF
##645CE4	1.00	5.01	4.19	5.01
#FFFFFF	5.01	1.00	21.00	1.00
#000000	4.19	21.00	1.00	21.00
##FFFFFF	5.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0074E8

Deuteranopia (green-blind)

#006AE1

Tritanopia (blue-blind)

#1E7D97

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #645ce4;
/* rgb */ color: rgb(100, 92, 228);
/* oklch */ color: oklch(55.9% 0.199 280.4);

Tailwind

colors: {
  custom: {
    50: '#9b8aed',
    500: '#645ce4',
    950: '#000000',
  },
}

SCSS

$custom: #645ce4;
$custom-light: #9b8aed;
$custom-dark: #000000;

JSON

{
  "hex": "#645ce4",
  "rgb": {
    "r": 100,
    "g": 92,
    "b": 228
  },
  "hsl": {
    "h": 243.529,
    "s": 71.579,
    "l": 62.745
  },
  "oklch": {
    "l": 0.5592,
    "c": 0.19947,
    "h": 280.4
  },
  "luminance": 0.15965
}

Semantic roles & 50–950 ramp

primary

#645CE4

secondary

#E4E7B5

accent

#D412C8

background

#FAF8FE

surface

#F4F0FD

border

#CECBD5

text

#0F0C16

muted

#7F7D84

Preview Lab

Preview with #645CE4

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

Preview Lab → · Contrast checker → · Palette generator →