#645EC0

#645EC0

Color Values

HEX

#645EC0

RGB

100, 94, 192

HSL

243.7, 43.7%, 56.1%

HSV

243.7, 51.0%, 75.3%

CMYK

47.9%, 51.0%, 0.0%, 24.7%

OKLCH

0.5369 0.1486 282.9

Properties

Cool Dark Nearest: NCS S 1050-R90B Blue Violet

Color Harmonies

Complementary

#645EC0

#BAC05E

Analogous

#5E89C0

#955EC0

#645EC0

Triadic

#645EC0

#C0645E

#5EC064

Split Complementary

#645EC0

#C0955E

#89C05E

Tetradic

#645EC0

#C05E89

#BAC05E

#5EC095

Color Blindness Simulation

Original

#645EC0

Protanopia

#6161A8

Deuteranopia

#6262A3

Tritanopia

#649691

Achromatopsia

#666666

CSS Usage

background-color: #645EC0;
color: #645EC0;
border-color: #645EC0;
Nearest Tailwind: Blue 800 #1E40AF

Tailwind Shades

50
#F5F5FA
100
#E7E7F4
200
#CECCEB
300
#AAA7DD
400
#7D77CA
500
#4F48B7
600
#3F3993
700
#322E75
800
#27245C
900
#201D44
950
#14132B

Contrast Checker

Text on white

5.38:1

AA Pass AAA Fail

Text on black

3.9:1

AA Fail AAA Fail

Related Articles

Brand Stories

Pantone Colors by Decade: The 2000s, 2010s, and 2020s Compared

Feb 01, 2026
Tutorials

Responsive Color: Adapting Colors for Different Screens

Jan 23, 2026
Tutorials

Color for Data Storytelling: Beyond Default Chart Colors

Jan 21, 2026