#645CDC#645CDC

#645CDC is a mid, vivid blue. Relative luminance 0.155; OKLCH L 55.3% C 0.189 H 281.1°. Best body text is #FFFFFF at 5.11:1 contrast (WCAG AA passes).

Color values

HEX	#645CDC
RGB	rgb(100, 92, 220)
HSL	hsl(244, 65%, 61%)
HSV	hsv(244, 58%, 86%)
CMYK	cmyk(54.5%, 58.2%, 0%, 13.7%)
CIE-LAB	lab(46.35, 38.23, -64.73)
CIE-LCH	lch(46.35, 75.17, 300.56°)
OKLab	oklab(55.32% 0.0363 -0.1856)
OKLCH	oklch(55.32% 0.189 281.1)
XYZ	xyz(21.9969, 15.5296, 69.5347)
Luminance	0.1553 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645CDC #D4DC5C

analogous

#5C94DC #645CDC #A45CDC

triadic

#645CDC #DC645C #5CDC64

tetradic

#645CDC #DC5C94 #D4DC5C #5CDCA4

square

#645CDC #DC5C94 #D4DC5C #5CDCA4

split-complementary

#645CDC #DCA45C #94DC5C

monochromatic

#29229C #362CCE #645CDC #948EE7 #C4C1F2

Accessibility & contrast

On white

5.11

#645CDC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.11

#645CDC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645CDC

5.11:1 — WCAG AA (normal text) passes

Contrast matrix

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

#0072E0

Deuteranopia (green-blind)

#0069D9

Tritanopia (blue-blind)

#2B7A93

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #645cdc;
/* rgb */ color: rgb(100, 92, 220);
/* oklch */ color: oklch(55.3% 0.189 281.1);

Tailwind

colors: {
  custom: {
    50: '#9a8ae8',
    500: '#645cdc',
    950: '#000000',
  },
}

SCSS

$custom: #645cdc;
$custom-light: #9a8ae8;
$custom-dark: #000000;

JSON

{
  "hex": "#645cdc",
  "rgb": {
    "r": 100,
    "g": 92,
    "b": 220
  },
  "hsl": {
    "h": 243.75,
    "s": 64.646,
    "l": 61.176
  },
  "oklch": {
    "l": 0.55315,
    "c": 0.1891,
    "h": 281.1
  },
  "luminance": 0.15531
}

Semantic roles & 50–950 ramp

primary

#645CDC

secondary

#DFE2B2

accent

#CC19C1

background

#FAF8FE

surface

#F3F0FD

border

#CDCBD5

text

#0F0C16

muted

#7F7D84

Preview Lab

Preview with #645CDC

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

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