#2B3F59

#2B3F59

Color Values

HEX

#2B3F59

RGB

43, 63, 89

HSL

213.9, 34.8%, 25.9%

HSV

213.9, 51.7%, 34.9%

CMYK

51.7%, 29.2%, 0.0%, 65.1%

OKLCH

0.363 0.052 255.3

Properties

Cool Dark Nearest: RAL 5020 Ocean Blue

Color Harmonies

Complementary

#2B3F59

#59452B

Analogous

#2B5659

#2E2B59

#2B3F59

Triadic

#2B3F59

#592B3F

#3F592B

Split Complementary

#2B3F59

#592E2B

#56592B

Tetradic

#2B3F59

#592B56

#59452B

#2B592E

Color Blindness Simulation

Original

#2B3F59

Protanopia

#343453

Deuteranopia

#323151

Tritanopia

#2C4E4D

Achromatopsia

#3D3D3D

CSS Usage

background-color: #2B3F59;
color: #2B3F59;
border-color: #2B3F59;
Nearest Tailwind: Slate 700 #334155

Tailwind Shades

50
#F5F7FA
100
#E8ECF2
200
#CFDAE8
300
#ADBFD7
400
#809CC1
500
#537AAC
600
#436189
700
#354E6E
800
#2A3D56
900
#212E40
950
#151D28

Contrast Checker

Text on white

10.73:1

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