#3B81CE

#3B81CE

Color Values

HEX

#3B81CE

RGB

59, 129, 206

HSL

211.4, 60.0%, 52.0%

HSV

211.4, 71.4%, 80.8%

CMYK

71.4%, 37.4%, 0.0%, 19.2%

OKLCH

0.5956 0.1374 253.0

Properties

Cool Light Nearest: NCS S 1060-B Bright Blue

Color Harmonies

Complementary

#3B81CE

#CE883B

Analogous

#3BCBCE

#3F3BCE

#3B81CE

Triadic

#3B81CE

#CE3B81

#81CE3B

Split Complementary

#3B81CE

#CE3F3B

#CBCE3B

Tetradic

#3B81CE

#CE3BCB

#CE883B

#3BCE3F

Color Blindness Simulation

Original

#3B81CE

Protanopia

#595ABB

Deuteranopia

#5550B7

Tritanopia

#3EADA9

Achromatopsia

#787878

CSS Usage

background-color: #3B81CE;
color: #3B81CE;
border-color: #3B81CE;
Nearest Tailwind: Sky 600 #0284C7

Tailwind Shades

50
#F3F7FB
100
#E4EDF6
200
#C6DAF1
300
#9DC0E7
400
#689ED9
500
#337CCC
600
#2963A3
700
#214F83
800
#1A3E66
900
#162F4B
950
#0E1E2F

Contrast Checker

Text on white

4.03:1

AA Fail AAA Fail

Text on black

5.22:1

AA Pass 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