#645CD7#645CD7

#645CD7 is a mid, vivid blue. Relative luminance 0.153; OKLCH L 54.9% C 0.183 H 281.5°. Best body text is #FFFFFF at 5.18:1 contrast (WCAG AA passes).

Color values

HEX	#645CD7
RGB	rgb(100, 92, 215)
HSL	hsl(244, 61%, 60%)
HSV	hsv(244, 57%, 84%)
CMYK	cmyk(53.5%, 57.2%, 0%, 15.7%)
CIE-LAB	lab(46.00, 36.67, -62.45)
CIE-LCH	lch(46.00, 72.42, 300.42°)
OKLab	oklab(54.94% 0.0363 -0.1789)
OKLCH	oklch(54.94% 0.183 281.5)
XYZ	xyz(21.3446, 15.2686, 66.0992)
Luminance	0.1527 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645CD7 #CFD75C

analogous

#5C92D7 #645CD7 #A15CD7

triadic

#645CD7 #D7645C #5CD764

tetradic

#645CD7 #D75C92 #CFD75C #5CD7A1

square

#645CD7 #D75C92 #CFD75C #5CD7A1

split-complementary

#645CD7 #D7A15C #92D75C

monochromatic

#2C2494 #3A30C5 #645CD7 #938DE3 #C1BEEF

Accessibility & contrast

On white

5.18

#645CD7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.05

#645CD7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645CD7

5.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645CD7	#FFFFFF	#000000	##FFFFFF
##645CD7	1.00	5.18	4.05	5.18
#FFFFFF	5.18	1.00	21.00	1.00
#000000	4.05	21.00	1.00	21.00
##FFFFFF	5.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0071DB

Deuteranopia (green-blind)

#0069D4

Tritanopia (blue-blind)

#317991

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #645cd7;
/* rgb */ color: rgb(100, 92, 215);
/* oklch */ color: oklch(54.9% 0.183 281.5);

Tailwind

colors: {
  custom: {
    50: '#998ae4',
    500: '#645cd7',
    950: '#000000',
  },
}

SCSS

$custom: #645cd7;
$custom-light: #998ae4;
$custom-dark: #000000;

JSON

{
  "hex": "#645cd7",
  "rgb": {
    "r": 100,
    "g": 92,
    "b": 215
  },
  "hsl": {
    "h": 243.902,
    "s": 60.591,
    "l": 60.196
  },
  "oklch": {
    "l": 0.54944,
    "c": 0.18254,
    "h": 281.5
  },
  "luminance": 0.1527
}

Semantic roles & 50–950 ramp

primary

#645CD7

secondary

#DCDFB0

accent

#C81DBD

background

#F9F8FE

surface

#F2F0FC

border

#CCCBD5

text

#0F0C16

muted

#7E7D84

Preview Lab

Preview with #645CD7

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

Preview Lab → · Contrast checker → · Palette generator →