#645CD6#645CD6

#645CD6 is a mid, vivid blue. Relative luminance 0.152; OKLCH L 54.9% C 0.181 H 281.6°. Best body text is #FFFFFF at 5.19:1 contrast (WCAG AA passes).

Color values

HEX	#645CD6
RGB	rgb(100, 92, 214)
HSL	hsl(244, 60%, 60%)
HSV	hsv(244, 57%, 84%)
CMYK	cmyk(53.3%, 57%, 0%, 16.1%)
CIE-LAB	lab(45.93, 36.36, -61.99)
CIE-LCH	lch(45.93, 71.87, 300.40°)
OKLab	oklab(54.87% 0.0363 -0.1775)
OKLCH	oklch(54.87% 0.181 281.6)
XYZ	xyz(21.2165, 15.2174, 65.4246)
Luminance	0.1522 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645CD6 #CED65C

analogous

#5C91D6 #645CD6 #A15CD6

triadic

#645CD6 #D6645C #5CD664

tetradic

#645CD6 #D65C91 #CED65C #5CD6A1

square

#645CD6 #D65C91 #CED65C #5CD6A1

split-complementary

#645CD6 #D6A15C #91D65C

monochromatic

#2C2593 #3B31C4 #645CD6 #928DE2 #C1BEEF

Accessibility & contrast

On white

5.19

#645CD6 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.04

#645CD6 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645CD6

5.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645CD6	#FFFFFF	#000000	##FFFFFF
##645CD6	1.00	5.19	4.04	5.19
#FFFFFF	5.19	1.00	21.00	1.00
#000000	4.04	21.00	1.00	21.00
##FFFFFF	5.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0071DA

Deuteranopia (green-blind)

#0068D3

Tritanopia (blue-blind)

#327890

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #645cd6;
/* rgb */ color: rgb(100, 92, 214);
/* oklch */ color: oklch(54.9% 0.181 281.6);

Tailwind

colors: {
  custom: {
    50: '#998ae3',
    500: '#645cd6',
    950: '#000000',
  },
}

SCSS

$custom: #645cd6;
$custom-light: #998ae3;
$custom-dark: #000000;

JSON

{
  "hex": "#645cd6",
  "rgb": {
    "r": 100,
    "g": 92,
    "b": 214
  },
  "hsl": {
    "h": 243.934,
    "s": 59.804,
    "l": 60
  },
  "oklch": {
    "l": 0.54871,
    "c": 0.18122,
    "h": 281.6
  },
  "luminance": 0.15219
}

Semantic roles & 50–950 ramp

primary

#645CD6

secondary

#DBDEAF

accent

#E345D9

background

#F9F8FE

surface

#F2F0FC

border

#CCCBD5

text

#0F0C16

muted

#7E7D84

Preview Lab

Preview with #645CD6

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

Preview Lab → · Contrast checker → · Palette generator →