#645EE4#645EE4

#645EE4 is a mid, vivid blue. Relative luminance 0.163; OKLCH L 56.3% C 0.197 H 280.0°. Best body text is #FFFFFF at 4.93:1 contrast (WCAG AA passes).

Color values

HEX	#645EE4
RGB	rgb(100, 94, 228)
HSL	hsl(243, 71%, 63%)
HSV	hsv(243, 59%, 89%)
CMYK	cmyk(56.1%, 58.8%, 0%, 10.6%)
CIE-LAB	lab(47.38, 39.53, -67.59)
CIE-LCH	lch(47.38, 78.30, 300.32°)
OKLab	oklab(56.26% 0.0341 -0.194)
OKLCH	oklch(56.26% 0.197 280)
XYZ	xyz(23.2574, 16.3146, 75.3072)
Luminance	0.1632 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645EE4 #DEE45E

analogous

#5E9BE4 #645EE4 #A75EE4

triadic

#645EE4 #E4645E #5EE464

tetradic

#645EE4 #E45E9B #DEE45E #5EE4A7

square

#645EE4 #E45E9B #DEE45E #5EE4A7

split-complementary

#645EE4 #E4A75E #9BE45E

monochromatic

#231DAB #322ADB #645EE4 #9692ED #C9C7F6

Accessibility & contrast

On white

4.93

#645EE4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.26

#645EE4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645EE4

4.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645EE4	#FFFFFF	#000000	##FFFFFF
##645EE4	1.00	4.93	4.26	4.93
#FFFFFF	4.93	1.00	21.00	1.00
#000000	4.26	21.00	1.00	21.00
##FFFFFF	4.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0076E8

Deuteranopia (green-blind)

#006BE1

Tritanopia (blue-blind)

#1E7E98

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #645ee4;
/* rgb */ color: rgb(100, 94, 228);
/* oklch */ color: oklch(56.3% 0.197 280.0);

Tailwind

colors: {
  custom: {
    50: '#9b8ced',
    500: '#645ee4',
    950: '#000000',
  },
}

SCSS

$custom: #645ee4;
$custom-light: #9b8ced;
$custom-dark: #000000;

JSON

{
  "hex": "#645ee4",
  "rgb": {
    "r": 100,
    "g": 94,
    "b": 228
  },
  "hsl": {
    "h": 242.687,
    "s": 71.277,
    "l": 63.137
  },
  "oklch": {
    "l": 0.56257,
    "c": 0.19697,
    "h": 280
  },
  "luminance": 0.16316
}

Semantic roles & 50–950 ramp

primary

#645EE4

secondary

#E5E7B7

accent

#D312CB

background

#FAF8FE

surface

#F4F0FD

border

#CECBD5

text

#0F0C16

muted

#7F7D84

Preview Lab

Preview with #645EE4

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

Preview Lab → · Contrast checker → · Palette generator →