#3737DF

#3737DF

Color Values

HEX

#3737DF

RGB

55, 55, 223

HSL

240.0, 72.4%, 54.5%

HSV

240.0, 75.3%, 87.5%

CMYK

75.3%, 75.3%, 0.0%, 12.5%

OKLCH

0.4693 0.2432 272.0

Properties

Cool Dark Nearest: purple 3

Color Harmonies

Complementary

#3737DF

#DFDF37

Analogous

#378BDF

#8B37DF

#3737DF

Triadic

#3737DF

#DF3737

#37DF37

Split Complementary

#3737DF

#DF8B37

#8BDF37

Tetradic

#3737DF

#DF378B

#DFDF37

#37DF8B

Color Blindness Simulation

Original

#3737DF

Protanopia

#3737B6

Deuteranopia

#3737AD

Tritanopia

#37968F

Achromatopsia

#434343

CSS Usage

background-color: #3737DF;
color: #3737DF;
border-color: #3737DF;
Nearest Tailwind: Indigo 600 #4F46E5

Tailwind Shades

50
#F3F3FC
100
#E2E2F8
200
#C1C1F5
300
#9595EE
400
#5C5CE5
500
#2323DC
600
#1C1CB0
700
#17178D
800
#12126E
900
#111150
950
#0B0B33

Contrast Checker

Text on white

7.57:1

AA Pass AAA Pass

Text on black

2.77:1

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