#645FD0#645FD0

#645FD0 is a mid, vivid blue. Relative luminance 0.154; OKLCH L 55.0% C 0.169 H 281.3°. Best body text is #FFFFFF at 5.13:1 contrast (WCAG AA passes).

Color values

HEX	#645FD0
RGB	rgb(100, 95, 208)
HSL	hsl(243, 55%, 59%)
HSV	hsv(243, 54%, 82%)
CMYK	cmyk(51.9%, 54.3%, 0%, 18.4%)
CIE-LAB	lab(46.24, 32.69, -58.06)
CIE-LCH	lch(46.24, 66.63, 299.38°)
OKLab	oklab(54.97% 0.033 -0.1659)
OKLCH	oklch(54.97% 0.169 281.3)
XYZ	xyz(20.7294, 15.4466, 61.5515)
Luminance	0.1545 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645FD0 #CBD05F

analogous

#5F93D0 #645FD0 #9D5FD0

triadic

#645FD0 #D0645F #5FD064

tetradic

#645FD0 #D05F93 #CBD05F #5FD09D

square

#645FD0 #D05F93 #CBD05F #5FD09D

split-complementary

#645FD0 #D09D5F #93D05F

monochromatic

#2D298C #3D37BB #645FD0 #928EDE #C0BEEC

Accessibility & contrast

On white

5.13

#645FD0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.09

#645FD0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645FD0

5.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645FD0	#FFFFFF	#000000	##FFFFFF
##645FD0	1.00	5.13	4.09	5.13
#FFFFFF	5.13	1.00	21.00	1.00
#000000	4.09	21.00	1.00	21.00
##FFFFFF	5.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A72D4

Deuteranopia (green-blind)

#0569CE

Tritanopia (blue-blind)

#37798E

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #645fd0;
/* rgb */ color: rgb(100, 95, 208);
/* oklch */ color: oklch(55.0% 0.169 281.3);

Tailwind

colors: {
  custom: {
    50: '#988cdf',
    500: '#645fd0',
    950: '#000000',
  },
}

SCSS

$custom: #645fd0;
$custom-light: #988cdf;
$custom-dark: #000000;

JSON

{
  "hex": "#645fd0",
  "rgb": {
    "r": 100,
    "g": 95,
    "b": 208
  },
  "hsl": {
    "h": 242.655,
    "s": 54.589,
    "l": 59.412
  },
  "oklch": {
    "l": 0.54971,
    "c": 0.16921,
    "h": 281.3
  },
  "luminance": 0.15448
}

Semantic roles & 50–950 ramp

primary

#645FD0

secondary

#D9DBAF

accent

#DE4AD7

background

#F9F8FD

surface

#F2F0FB

border

#CCCBD4

text

#0E0C15

muted

#7E7D83

Preview Lab

Preview with #645FD0

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

Preview Lab → · Contrast checker → · Palette generator →