#645CD0#645CD0

#645CD0 is a mid, vivid blue. Relative luminance 0.149; OKLCH L 54.4% C 0.173 H 282.1°. Best body text is #FFFFFF at 5.27:1 contrast (WCAG AA passes).

Color values

HEX	#645CD0
RGB	rgb(100, 92, 208)
HSL	hsl(244, 55%, 59%)
HSV	hsv(244, 56%, 82%)
CMYK	cmyk(51.9%, 55.8%, 0%, 18.4%)
CIE-LAB	lab(45.52, 34.51, -59.22)
CIE-LCH	lch(45.52, 68.54, 300.23°)
OKLab	oklab(54.44% 0.0363 -0.1694)
OKLCH	oklch(54.44% 0.173 282.1)
XYZ	xyz(20.4644, 14.9165, 61.4631)
Luminance	0.1492 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645CD0 #C8D05C

analogous

#5C8ED0 #645CD0 #9E5CD0

triadic

#645CD0 #D0645C #5CD064

tetradic

#645CD0 #D05C8E #C8D05C #5CD09E

square

#645CD0 #D05C8E #C8D05C #5CD09E

split-complementary

#645CD0 #D09E5C #8ED05C

monochromatic

#2F288A #3F35B9 #645CD0 #918CDE #BEBBEB

Accessibility & contrast

On white

5.27

#645CD0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.98

#645CD0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645CD0

5.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645CD0	#FFFFFF	#000000	##FFFFFF
##645CD0	1.00	5.27	3.98	5.27
#FFFFFF	5.27	1.00	21.00	1.00
#000000	3.98	21.00	1.00	21.00
##FFFFFF	5.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0970D4

Deuteranopia (green-blind)

#0068CE

Tritanopia (blue-blind)

#38768D

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #645cd0;
/* rgb */ color: rgb(100, 92, 208);
/* oklch */ color: oklch(54.4% 0.173 282.1);

Tailwind

colors: {
  custom: {
    50: '#988adf',
    500: '#645cd0',
    950: '#000000',
  },
}

SCSS

$custom: #645cd0;
$custom-light: #988adf;
$custom-dark: #000000;

JSON

{
  "hex": "#645cd0",
  "rgb": {
    "r": 100,
    "g": 92,
    "b": 208
  },
  "hsl": {
    "h": 244.138,
    "s": 55.238,
    "l": 58.824
  },
  "oklch": {
    "l": 0.54436,
    "c": 0.17323,
    "h": 282.1
  },
  "luminance": 0.14918
}

Semantic roles & 50–950 ramp

primary

#645CD0

secondary

#D8DBAD

accent

#DF49D4

background

#F9F8FD

surface

#F2F0FB

border

#CCCBD4

text

#0E0C15

muted

#7E7D83

Preview Lab

Preview with #645CD0

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

Preview Lab → · Contrast checker → · Palette generator →