#645FCD#645FCD

#645FCD is a mid, vivid blue. Relative luminance 0.153; OKLCH L 54.8% C 0.165 H 281.5°. Best body text is #FFFFFF at 5.17:1 contrast (WCAG AA passes).

Color values

HEX	#645FCD
RGB	rgb(100, 95, 205)
HSL	hsl(243, 52%, 59%)
HSV	hsv(243, 54%, 80%)
CMYK	cmyk(51.2%, 53.7%, 0%, 19.6%)
CIE-LAB	lab(46.04, 31.76, -56.66)
CIE-LCH	lch(46.04, 64.95, 299.27°)
OKLab	oklab(54.76% 0.0329 -0.1618)
OKLCH	oklch(54.76% 0.165 281.5)
XYZ	xyz(20.3638, 15.3004, 59.6260)
Luminance	0.1530 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645FCD #C8CD5F

analogous

#5F91CD #645FCD #9B5FCD

triadic

#645FCD #CD645F #5FCD64

tetradic

#645FCD #CD5F91 #C8CD5F #5FCD9B

square

#645FCD #CD5F91 #C8CD5F #5FCD9B

split-complementary

#645FCD #CD9B5F #91CD5F

monochromatic

#2F2A87 #3F39B6 #645FCD #918EDC #BEBCEA

Accessibility & contrast

On white

5.17

#645FCD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.06

#645FCD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645FCD

5.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645FCD	#FFFFFF	#000000	##FFFFFF
##645FCD	1.00	5.17	4.06	5.17
#FFFFFF	5.17	1.00	21.00	1.00
#000000	4.06	21.00	1.00	21.00
##FFFFFF	5.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2071D1

Deuteranopia (green-blind)

#1269CB

Tritanopia (blue-blind)

#3A788D

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #645fcd;
/* rgb */ color: rgb(100, 95, 205);
/* oklch */ color: oklch(54.8% 0.165 281.5);

Tailwind

colors: {
  custom: {
    50: '#988cdd',
    500: '#645fcd',
    950: '#000000',
  },
}

SCSS

$custom: #645fcd;
$custom-light: #988cdd;
$custom-dark: #000000;

JSON

{
  "hex": "#645fcd",
  "rgb": {
    "r": 100,
    "g": 95,
    "b": 205
  },
  "hsl": {
    "h": 242.727,
    "s": 52.381,
    "l": 58.824
  },
  "oklch": {
    "l": 0.54761,
    "c": 0.16514,
    "h": 281.5
  },
  "luminance": 0.15302
}

Semantic roles & 50–950 ramp

primary

#645FCD

secondary

#D8DAAE

accent

#DC4CD5

background

#F9F8FD

surface

#F2F0FB

border

#CCCBD4

text

#0E0C15

muted

#7E7D83

Preview Lab

Preview with #645FCD

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

Preview Lab → · Contrast checker → · Palette generator →