#646AAC

#646AAC

Color Values

HEX

#646AAC

RGB

100, 106, 172

HSL

235.0, 30.3%, 53.3%

HSV

235.0, 41.9%, 67.5%

CMYK

41.9%, 38.4%, 0.0%, 32.5%

OKLCH

0.5485 0.1025 278.5

Properties

Cool Dark Nearest: Indigo

Color Harmonies

Complementary

#646AAC

#ACA664

Analogous

#648EAC

#8264AC

#646AAC

Triadic

#646AAC

#AC646A

#6AAC64

Split Complementary

#646AAC

#AC8264

#8EAC64

Tetradic

#646AAC

#AC648E

#ACA664

#64AC82

Color Blindness Simulation

Original

#646AAC

Protanopia

#67679C

Deuteranopia

#666698

Tritanopia

#648F8D

Achromatopsia

#6D6D6D

CSS Usage

background-color: #646AAC;
color: #646AAC;
border-color: #646AAC;
Nearest Tailwind: Sky 700 #0369A1

Tailwind Shades

50
#F5F6F9
100
#E9E9F2
200
#D0D2E6
300
#AFB2D4
400
#8489BD
500
#595FA6
600
#474C85
700
#393D6A
800
#2C3053
900
#23253E
950
#161827

Contrast Checker

Text on white

5.0:1

AA Pass AAA Fail

Text on black

4.2:1

AA Fail AAA Fail

Related Articles

Tutorials

Building a Color Picker Web Component from Scratch

Feb 20, 2026
Tutorials

Web Color Performance: Gradients, Shadows, and Filters

Feb 19, 2026
Tutorials

Tailwind CSS Colors: Complete Shade System Guide

Feb 19, 2026