#645CCC#645CCC

#645CCC is a mid, vivid blue. Relative luminance 0.147; OKLCH L 54.2% C 0.168 H 282.5°. Best body text is #FFFFFF at 5.32:1 contrast (WCAG AA passes).

Color values

HEX	#645CCC
RGB	rgb(100, 92, 204)
HSL	hsl(244, 52%, 58%)
HSV	hsv(244, 55%, 80%)
CMYK	cmyk(51%, 54.9%, 0%, 20%)
CIE-LAB	lab(45.25, 33.27, -57.36)
CIE-LCH	lch(45.25, 66.31, 300.12°)
OKLab	oklab(54.15% 0.0362 -0.1639)
OKLCH	oklch(54.15% 0.168 282.5)
XYZ	xyz(19.9784, 14.7222, 58.9040)
Luminance	0.1472 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645CCC #C4CC5C

analogous

#5C8CCC #645CCC #9C5CCC

triadic

#645CCC #CC645C #5CCC64

tetradic

#645CCC #CC5C8C #C4CC5C #5CCC9C

square

#645CCC #CC5C8C #C4CC5C #5CCC9C

split-complementary

#645CCC #CC9C5C #8CCC5C

monochromatic

#302984 #4138B3 #645CCC #908BDB #BDB9E9

Accessibility & contrast

On white

5.32

#645CCC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.94

#645CCC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645CCC

5.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645CCC	#FFFFFF	#000000	##FFFFFF
##645CCC	1.00	5.32	3.94	5.32
#FFFFFF	5.32	1.00	21.00	1.00
#000000	3.94	21.00	1.00	21.00
##FFFFFF	5.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#176FD0

Deuteranopia (green-blind)

#0467CA

Tritanopia (blue-blind)

#3B758B

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #645ccc;
/* rgb */ color: rgb(100, 92, 204);
/* oklch */ color: oklch(54.2% 0.168 282.5);

Tailwind

colors: {
  custom: {
    50: '#988adc',
    500: '#645ccc',
    950: '#000000',
  },
}

SCSS

$custom: #645ccc;
$custom-light: #988adc;
$custom-dark: #000000;

JSON

{
  "hex": "#645ccc",
  "rgb": {
    "r": 100,
    "g": 92,
    "b": 204
  },
  "hsl": {
    "h": 244.286,
    "s": 52.336,
    "l": 58.039
  },
  "oklch": {
    "l": 0.54151,
    "c": 0.16786,
    "h": 282.5
  },
  "luminance": 0.14723
}

Semantic roles & 50–950 ramp

primary

#645CCC

secondary

#D5D8AC

accent

#DC4CD1

background

#F9F8FD

surface

#F2F0FB

border

#CCCBD4

text

#0E0C15

muted

#7E7D83

Preview Lab

Preview with #645CCC

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

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