#645AE3#645AE3

#645AE3 is a mid, highly saturated blue. Relative luminance 0.156; OKLCH L 55.5% C 0.201 H 280.9°. Best body text is #FFFFFF at 5.11:1 contrast (WCAG AA passes).

Color values

HEX	#645AE3
RGB	rgb(100, 90, 227)
HSL	hsl(244, 71%, 62%)
HSV	hsv(244, 60%, 89%)
CMYK	cmyk(55.9%, 60.4%, 0%, 11%)
CIE-LAB	lab(46.40, 41.58, -68.62)
CIE-LCH	lch(46.40, 80.24, 301.21°)
OKLab	oklab(55.51% 0.038 -0.197)
OKLCH	oklch(55.51% 0.201 280.9)
XYZ	xyz(22.7725, 15.5662, 74.4627)
Luminance	0.1557 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645AE3 #D9E35A

analogous

#5A94E3 #645AE3 #A95AE3

triadic

#645AE3 #E3645A #5AE364

tetradic

#645AE3 #E35A94 #D9E35A #5AE3A9

square

#645AE3 #E35A94 #D9E35A #5AE3A9

split-complementary

#645AE3 #E3A95A #94E35A

monochromatic

#261CA6 #3326DA #645AE3 #958EEC #C6C3F5

Accessibility & contrast

On white

5.11

#645AE3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.11

#645AE3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645AE3

5.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645AE3	#FFFFFF	#000000	##FFFFFF
##645AE3	1.00	5.11	4.11	5.11
#FFFFFF	5.11	1.00	21.00	1.00
#000000	4.11	21.00	1.00	21.00
##FFFFFF	5.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0073E7

Deuteranopia (green-blind)

#0069E0

Tritanopia (blue-blind)

#217B96

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #645ae3;
/* rgb */ color: rgb(100, 90, 227);
/* oklch */ color: oklch(55.5% 0.201 280.9);

Tailwind

colors: {
  custom: {
    50: '#9b89ed',
    500: '#645ae3',
    950: '#000000',
  },
}

SCSS

$custom: #645ae3;
$custom-light: #9b89ed;
$custom-dark: #000000;

JSON

{
  "hex": "#645ae3",
  "rgb": {
    "r": 100,
    "g": 90,
    "b": 227
  },
  "hsl": {
    "h": 244.38,
    "s": 70.984,
    "l": 62.157
  },
  "oklch": {
    "l": 0.5551,
    "c": 0.20067,
    "h": 280.9
  },
  "luminance": 0.15568
}

Semantic roles & 50–950 ramp

primary

#645AE3

secondary

#E2E6B3

accent

#D312C5

background

#FAF8FE

surface

#F4F0FD

border

#CECBD5

text

#0F0B16

muted

#7F7C84

Preview Lab

Preview with #645AE3

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

Preview Lab → · Contrast checker → · Palette generator →