#645DCD#645DCD

#645DCD is a mid, vivid blue. Relative luminance 0.149; OKLCH L 54.4% C 0.168 H 282.1°. Best body text is #FFFFFF at 5.26:1 contrast (WCAG AA passes).

Color values

HEX	#645DCD
RGB	rgb(100, 93, 205)
HSL	hsl(244, 53%, 58%)
HSV	hsv(244, 55%, 80%)
CMYK	cmyk(51.2%, 54.6%, 0%, 19.6%)
CIE-LAB	lab(45.56, 32.98, -57.44)
CIE-LCH	lch(45.56, 66.23, 299.86°)
OKLab	oklab(54.4% 0.0351 -0.1641)
OKLCH	oklch(54.4% 0.168 282.1)
XYZ	xyz(20.1860, 14.9447, 59.5667)
Luminance	0.1495 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645DCD #C6CD5D

analogous

#5D8ECD #645DCD #9C5DCD

triadic

#645DCD #CD645D #5DCD64

tetradic

#645DCD #CD5D8E #C6CD5D #5DCD9C

square

#645DCD #CD5D8E #C6CD5D #5DCD9C

split-complementary

#645DCD #CD9C5D #8ECD5D

monochromatic

#2F2986 #4038B5 #645DCD #918CDB #BDBBEA

Accessibility & contrast

On white

5.26

#645DCD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.99

#645DCD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645DCD

5.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645DCD	#FFFFFF	#000000	##FFFFFF
##645DCD	1.00	5.26	3.99	5.26
#FFFFFF	5.26	1.00	21.00	1.00
#000000	3.99	21.00	1.00	21.00
##FFFFFF	5.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1970D1

Deuteranopia (green-blind)

#0668CB

Tritanopia (blue-blind)

#3A768C

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #645dcd;
/* rgb */ color: rgb(100, 93, 205);
/* oklch */ color: oklch(54.4% 0.168 282.1);

Tailwind

colors: {
  custom: {
    50: '#988bdd',
    500: '#645dcd',
    950: '#000000',
  },
}

SCSS

$custom: #645dcd;
$custom-light: #988bdd;
$custom-dark: #000000;

JSON

{
  "hex": "#645dcd",
  "rgb": {
    "r": 100,
    "g": 93,
    "b": 205
  },
  "hsl": {
    "h": 243.75,
    "s": 52.83,
    "l": 58.431
  },
  "oklch": {
    "l": 0.544,
    "c": 0.16786,
    "h": 282.1
  },
  "luminance": 0.14946
}

Semantic roles & 50–950 ramp

primary

#645DCD

secondary

#D6D9AD

accent

#DC4CD3

background

#F9F8FD

surface

#F2F0FB

border

#CCCBD4

text

#0E0C15

muted

#7E7D83

Preview Lab

Preview with #645DCD

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

Preview Lab → · Contrast checker → · Palette generator →