#645CD4#645CD4

#645CD4 is a mid, vivid blue. Relative luminance 0.151; OKLCH L 54.7% C 0.179 H 281.7°. Best body text is #FFFFFF at 5.22:1 contrast (WCAG AA passes).

Color values

HEX	#645CD4
RGB	rgb(100, 92, 212)
HSL	hsl(244, 58%, 60%)
HSV	hsv(244, 57%, 83%)
CMYK	cmyk(52.8%, 56.6%, 0%, 16.9%)
CIE-LAB	lab(45.79, 35.75, -61.07)
CIE-LCH	lch(45.79, 70.76, 300.34°)
OKLab	oklab(54.73% 0.0363 -0.1748)
OKLCH	oklch(54.73% 0.179 281.7)
XYZ	xyz(20.9627, 15.1159, 64.0876)
Luminance	0.1512 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645CD4 #CCD45C

analogous

#5C90D4 #645CD4 #A05CD4

triadic

#645CD4 #D4645C #5CD464

tetradic

#645CD4 #D45C90 #CCD45C #5CD4A0

square

#645CD4 #D45C90 #CCD45C #5CD4A0

split-complementary

#645CD4 #D4A05C #90D45C

monochromatic

#2D2690 #3C33C0 #645CD4 #928CE1 #C0BDEE

Accessibility & contrast

On white

5.22

#645CD4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.02

#645CD4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645CD4

5.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645CD4	#FFFFFF	#000000	##FFFFFF
##645CD4	1.00	5.22	4.02	5.22
#FFFFFF	5.22	1.00	21.00	1.00
#000000	4.02	21.00	1.00	21.00
##FFFFFF	5.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0071D8

Deuteranopia (green-blind)

#0068D1

Tritanopia (blue-blind)

#34788F

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #645cd4;
/* rgb */ color: rgb(100, 92, 212);
/* oklch */ color: oklch(54.7% 0.179 281.7);

Tailwind

colors: {
  custom: {
    50: '#998ae2',
    500: '#645cd4',
    950: '#000000',
  },
}

SCSS

$custom: #645cd4;
$custom-light: #998ae2;
$custom-dark: #000000;

JSON

{
  "hex": "#645cd4",
  "rgb": {
    "r": 100,
    "g": 92,
    "b": 212
  },
  "hsl": {
    "h": 244,
    "s": 58.252,
    "l": 59.608
  },
  "oklch": {
    "l": 0.54725,
    "c": 0.17857,
    "h": 281.7
  },
  "luminance": 0.15117
}

Semantic roles & 50–950 ramp

primary

#645CD4

secondary

#DADDAF

accent

#E146D7

background

#F9F8FD

surface

#F2F0FB

border

#CCCBD4

text

#0F0C15

muted

#7E7D83

Preview Lab

Preview with #645CD4

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

Preview Lab → · Contrast checker → · Palette generator →