#3F7BB3

#3F7BB3

Color Values

HEX

#3F7BB3

RGB

63, 123, 179

HSL

209.0, 47.9%, 47.5%

HSV

209.0, 64.8%, 70.2%

CMYK

64.8%, 31.3%, 0.0%, 29.8%

OKLCH

0.5682 0.1073 248.8

Properties

Cool Light Nearest: RAL 5012 Light Blue

Color Harmonies

Complementary

#3F7BB3

#B3773F

Analogous

#3FB3B1

#3F41B3

#3F7BB3

Triadic

#3F7BB3

#B33F7B

#7BB33F

Split Complementary

#3F7BB3

#B33F41

#B3B13F

Tetradic

#3F7BB3

#B13FB3

#B3773F

#41B33F

Color Blindness Simulation

Original

#3F7BB3

Protanopia

#595AA5

Deuteranopia

#5651A2

Tritanopia

#429B98

Achromatopsia

#727272

CSS Usage

background-color: #3F7BB3;
color: #3F7BB3;
border-color: #3F7BB3;
Nearest Tailwind: Sky 700 #0369A1

Tailwind Shades

50
#F4F7FA
100
#E6EDF4
200
#CADCEC
300
#A4C3DF
400
#73A2CE
500
#4282BD
600
#356897
700
#2B5379
800
#21415E
900
#1C3145
950
#111F2C

Contrast Checker

Text on white

4.47:1

AA Fail AAA Fail

Text on black

4.7:1

AA Pass AAA Fail

Related Articles

Tutorials

Responsive Color: Adapting Colors for Different Screens

Jan 23, 2026
Tutorials

Color for Data Storytelling: Beyond Default Chart Colors

Jan 21, 2026
Tutorials

How to Choose Brand Colors: A Step-by-Step Guide

Jan 18, 2026