#646AC4

#646AC4

Color Values

HEX

#646AC4

RGB

100, 106, 196

HSL

236.2, 44.9%, 58.0%

HSV

236.2, 49.0%, 76.9%

CMYK

49.0%, 45.9%, 0.0%, 23.1%

OKLCH

0.5625 0.1375 278.1

Properties

Cool Dark Nearest: Blue Violet

Color Harmonies

Complementary

#646AC4

#C4BE64

Analogous

#649AC4

#8E64C4

#646AC4

Triadic

#646AC4

#C4646A

#6AC464

Split Complementary

#646AC4

#C48E64

#9AC464

Tetradic

#646AC4

#C4649A

#C4BE64

#64C48E

Color Blindness Simulation

Original

#646AC4

Protanopia

#6767AE

Deuteranopia

#6666A9

Tritanopia

#649D99

Achromatopsia

#6F6F6F

CSS Usage

background-color: #646AC4;
color: #646AC4;
border-color: #646AC4;
Nearest Tailwind: Indigo 400 #818CF8

Tailwind Shades

50
#F4F5FA
100
#E6E7F4
200
#CBCDEB
300
#A6AADD
400
#767CCB
500
#464EB9
600
#383E94
700
#2D3276
800
#23275C
900
#1D1F44
950
#12142B

Contrast Checker

Text on white

4.77:1

AA Pass AAA Fail

Text on black

4.4:1

AA Fail AAA Fail

Related Articles

Tutorials

CSS color-mix(): Blend Colors Natively in the Browser

1월 26, 2026
Tutorials

Building a Color Picker Web Component from Scratch

1월 21, 2026
Tutorials

Perceptual Color Spaces: Lab, LCH, Oklab, OKLCH

1월 15, 2026