#3F7BBC

#3F7BBC

Color Values

HEX

#3F7BBC

RGB

63, 123, 188

HSL

211,2, 49,8%, 49,2%

HSV

211,2, 66,5%, 73,7%

CMYK

66,5%, 34,6%, 0,0%, 26,3%

OKLCH

0,5731 0,1187 252,2

Properties

Cool Light Nearest: RAL 5015 Sky Blue

Color Harmonies

Complementary

#3F7BBC

#BC803F

Analogous

#3FB9BC

#413FBC

#3F7BBC

Triadic

#3F7BBC

#BC3F7B

#7BBC3F

Split Complementary

#3F7BBC

#BC413F

#B9BC3F

Tetradic

#3F7BBC

#BC3FB9

#BC803F

#3FBC41

Color Blindness Simulation

Original

#3F7BBC

Protanopia

#595AAC

Deuteranopia

#5651A8

Tritanopia

#42A09D

Achromatopsia

#737373

CSS Usage

background-color: #3F7BBC;
color: #3F7BBC;
border-color: #3F7BBC;
Nearest Tailwind: Sky 600 #0284C7

Tailwind Shades

50
#F4F7FB
100
#E6EDF5
200
#CADBED
300
#A3C1E0
400
#729FD0
500
#407DBF
600
#336499
700
#29507A
800
#203E5F
900
#1B3046
950
#111E2C

Contrast Checker

Text on white

4,4:1

AA Fail AAA Fail

Text on black

4,77:1

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