#2B3979

#2B3979

Color Values

HEX

#2B3979

RGB

43, 57, 121

HSL

229.2, 47.6%, 32.2%

HSV

229.2, 64.5%, 47.5%

CMYK

64.5%, 52.9%, 0.0%, 52.5%

OKLCH

0.37 0.11 270.9

Properties

Cool Dark Nearest: NCS S 3060-B Dark Blue

Color Harmonies

Complementary

#2B3979

#796B2B

Analogous

#2B6079

#442B79

#2B3979

Triadic

#2B3979

#792B39

#39792B

Split Complementary

#2B3979

#79442B

#60792B

Tetradic

#2B3979

#792B60

#796B2B

#2B7944

Color Blindness Simulation

Original

#2B3979

Protanopia

#31316A

Deuteranopia

#302F66

Tritanopia

#2C5D5B

Achromatopsia

#3B3B3B

CSS Usage

background-color: #2B3979;
color: #2B3979;
border-color: #2B3979;
Nearest Tailwind: Blue 900 #1E3A8A

Tailwind Shades

50
#F4F5FA
100
#E6E9F4
200
#CAD0EC
300
#A5AFDF
400
#7484CE
500
#4359BC
600
#354797
700
#2B3978
800
#212C5E
900
#1C2345
950
#11162C

Contrast Checker

Text on white

10.69:1

AA Pass AAA Pass

Text on black

1.96:1

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