#645AE5#645AE5

#645AE5 is a mid, highly saturated blue. Relative luminance 0.157; OKLCH L 55.7% C 0.203 H 280.7°. Best body text is #FFFFFF at 5.08:1 contrast (WCAG AA passes).

Color values

HEX	#645AE5
RGB	rgb(100, 90, 229)
HSL	hsl(244, 73%, 63%)
HSV	hsv(244, 61%, 90%)
CMYK	cmyk(56.3%, 60.7%, 0%, 10.2%)
CIE-LAB	lab(46.55, 42.20, -69.51)
CIE-LCH	lch(46.55, 81.32, 301.26°)
OKLab	oklab(55.67% 0.0379 -0.1997)
OKLCH	oklch(55.67% 0.203 280.7)
XYZ	xyz(23.0501, 15.6773, 75.9249)
Luminance	0.1568 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645AE5 #DBE55A

analogous

#5A95E5 #645AE5 #AA5AE5

triadic

#645AE5 #E5645A #5AE564

tetradic

#645AE5 #E55A95 #DBE55A #5AE5AA

square

#645AE5 #E55A95 #DBE55A #5AE5AA

split-complementary

#645AE5 #E5AA5A #95E55A

monochromatic

#251BAA #3225DD #645AE5 #968FED #C7C4F6

Accessibility & contrast

On white

5.08

#645AE5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.14

#645AE5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645AE5

5.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645AE5	#FFFFFF	#000000	##FFFFFF
##645AE5	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)

#0073EA

Deuteranopia (green-blind)

#0069E2

Tritanopia (blue-blind)

#1D7C97

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #645ae5;
/* rgb */ color: rgb(100, 90, 229);
/* oklch */ color: oklch(55.7% 0.203 280.7);

Tailwind

colors: {
  custom: {
    50: '#9b89ee',
    500: '#645ae5',
    950: '#000000',
  },
}

SCSS

$custom: #645ae5;
$custom-light: #9b89ee;
$custom-dark: #000000;

JSON

{
  "hex": "#645ae5",
  "rgb": {
    "r": 100,
    "g": 90,
    "b": 229
  },
  "hsl": {
    "h": 244.317,
    "s": 72.775,
    "l": 62.549
  },
  "oklch": {
    "l": 0.55665,
    "c": 0.20323,
    "h": 280.7
  },
  "luminance": 0.15679
}

Semantic roles & 50–950 ramp

primary

#645AE5

secondary

#E3E7B4

accent

#D511C7

background

#FAF8FE

surface

#F4F0FD

border

#CECBD5

text

#0F0B16

muted

#7F7C84

Preview Lab

Preview with #645AE5

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

Preview Lab → · Contrast checker → · Palette generator →