#645BE2#645BE2

#645BE2 is a mid, vivid blue. Relative luminance 0.157; OKLCH L 55.6% C 0.198 H 280.8°. Best body text is #FFFFFF at 5.08:1 contrast (WCAG AA passes).

Color values

HEX	#645BE2
RGB	rgb(100, 91, 226)
HSL	hsl(244, 70%, 62%)
HSV	hsv(244, 60%, 89%)
CMYK	cmyk(55.8%, 59.7%, 0%, 11.4%)
CIE-LAB	lab(46.55, 40.68, -67.81)
CIE-LCH	lch(46.55, 79.07, 300.96°)
OKLab	oklab(55.6% 0.0371 -0.1946)
OKLCH	oklch(55.6% 0.198 280.8)
XYZ	xyz(22.7198, 15.6810, 73.7663)
Luminance	0.1568 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645BE2 #D9E25B

analogous

#5B96E2 #645BE2 #A85BE2

triadic

#645BE2 #E2645B #5BE264

tetradic

#645BE2 #E25B96 #D9E25B #5BE2A8

square

#645BE2 #E25B96 #D9E25B #5BE2A8

split-complementary

#645BE2 #E2A85B #96E25B

monochromatic

#261DA5 #3327D9 #645BE2 #958FEB #C6C3F4

Accessibility & contrast

On white

5.08

#645BE2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.14

#645BE2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645BE2

5.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645BE2	#FFFFFF	#000000	##FFFFFF
##645BE2	1.00	5.08	4.14	5.08
#FFFFFF	5.08	1.00	21.00	1.00
#000000	4.14	21.00	1.00	21.00
##FFFFFF	5.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0073E6

Deuteranopia (green-blind)

#0069DF

Tritanopia (blue-blind)

#227B96

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #645be2;
/* rgb */ color: rgb(100, 91, 226);
/* oklch */ color: oklch(55.6% 0.198 280.8);

Tailwind

colors: {
  custom: {
    50: '#9b8aec',
    500: '#645be2',
    950: '#000000',
  },
}

SCSS

$custom: #645be2;
$custom-light: #9b8aec;
$custom-dark: #000000;

JSON

{
  "hex": "#645be2",
  "rgb": {
    "r": 100,
    "g": 91,
    "b": 226
  },
  "hsl": {
    "h": 244,
    "s": 69.948,
    "l": 62.157
  },
  "oklch": {
    "l": 0.556,
    "c": 0.19815,
    "h": 280.8
  },
  "luminance": 0.15682
}

Semantic roles & 50–950 ramp

primary

#645BE2

secondary

#E2E5B4

accent

#D214C5

background

#FAF8FE

surface

#F4F0FD

border

#CECBD5

text

#0F0C16

muted

#7F7D84

Preview Lab

Preview with #645BE2

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

Preview Lab → · Contrast checker → · Palette generator →