#3733CC

#3733CC

Color Values

HEX

#3733CC

RGB

55, 51, 204

HSL

241.6, 60.0%, 50.0%

HSV

241.6, 75.0%, 80.0%

CMYK

73.0%, 75.0%, 0.0%, 20.0%

OKLCH

0.4442 0.2246 273.5

Properties

Cool Dark Nearest: purple 3

Color Harmonies

Complementary

#3733CC

#C8CC33

Analogous

#337BCC

#8433CC

#3733CC

Triadic

#3733CC

#CC3733

#33CC37

Split Complementary

#3733CC

#CC8433

#7BCC33

Tetradic

#3733CC

#CC337B

#C8CC33

#33CC84

Color Blindness Simulation

Original

#3733CC

Protanopia

#3535A7

Deuteranopia

#36369E

Tritanopia

#378A83

Achromatopsia

#3F3F3F

CSS Usage

background-color: #3733CC;
color: #3733CC;
border-color: #3733CC;
Nearest Tailwind: Indigo 700 #4338CA

Tailwind Shades

50
#F4F3FB
100
#E5E4F6
200
#C7C6F1
300
#9F9DE7
400
#6B68D9
500
#3733CC
600
#2C29A3
700
#232183
800
#1C1A66
900
#18164B
950
#0F0E2F

Contrast Checker

Text on white

8.37:1

AA Pass AAA Pass

Text on black

2.51:1

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