#645AE9#645AE9

#645AE9 is a mid, highly saturated blue. Relative luminance 0.159; OKLCH L 56.0% C 0.208 H 280.4°. Best body text is #FFFFFF at 5.02:1 contrast (WCAG AA passes).

Color values

HEX	#645AE9
RGB	rgb(100, 90, 233)
HSL	hsl(244, 76%, 63%)
HSV	hsv(244, 61%, 91%)
CMYK	cmyk(57.1%, 61.4%, 0%, 8.6%)
CIE-LAB	lab(46.85, 43.44, -71.28)
CIE-LCH	lch(46.85, 83.47, 301.36°)
OKLab	oklab(55.98% 0.0376 -0.2049)
OKLCH	oklch(55.98% 0.208 280.4)
XYZ	xyz(23.6151, 15.9032, 78.9002)
Luminance	0.1590 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645AE9 #DFE95A

analogous

#5A97E9 #645AE9 #AB5AE9

triadic

#645AE9 #E9645A #5AE964

tetradic

#645AE9 #E95A97 #DFE95A #5AE9AB

square

#645AE9 #E95A97 #DFE95A #5AE9AB

split-complementary

#645AE9 #E9AB5A #97E95A

monochromatic

#2218B1 #3124E2 #645AE9 #9790F0 #C9C6F7

Accessibility & contrast

On white

5.02

#645AE9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.18

#645AE9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645AE9

5.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645AE9	#FFFFFF	#000000	##FFFFFF
##645AE9	1.00	5.02	4.18	5.02
#FFFFFF	5.02	1.00	21.00	1.00
#000000	4.18	21.00	1.00	21.00
##FFFFFF	5.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0074EE

Deuteranopia (green-blind)

#006AE6

Tritanopia (blue-blind)

#137D99

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #645ae9;
/* rgb */ color: rgb(100, 90, 233);
/* oklch */ color: oklch(56.0% 0.208 280.4);

Tailwind

colors: {
  custom: {
    50: '#9c89f1',
    500: '#645ae9',
    950: '#000000',
  },
}

SCSS

$custom: #645ae9;
$custom-light: #9c89f1;
$custom-dark: #000000;

JSON

{
  "hex": "#645ae9",
  "rgb": {
    "r": 100,
    "g": 90,
    "b": 233
  },
  "hsl": {
    "h": 244.196,
    "s": 76.471,
    "l": 63.333
  },
  "oklch": {
    "l": 0.55978,
    "c": 0.2083,
    "h": 280.4
  },
  "luminance": 0.15905
}

Semantic roles & 50–950 ramp

primary

#645AE9

secondary

#E5E9B6

accent

#D90DCA

background

#FAF8FE

surface

#F4F0FD

border

#CECBD5

text

#0F0B17

muted

#7F7C85

Preview Lab

Preview with #645AE9

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

Preview Lab → · Contrast checker → · Palette generator →