How to Wear a Navy Blue Cardigan

Q: How can I combine a navy blue cardigan stylishly?
For both men and women:
1.You can wear it with a white top and a pair of beige/camel/dark yellow pants.

blue navy_white_dark yellow_the_color_harmony

Cardigan                              Top                               Pants

It is better to wear black shoes with this outfit.
2.You can wear it with a white T-shirt and black pants.

Cardigan                        Deep V-neck/Round Neck Top                          Pants

3.You can style it with the white top and blue jeans.
blue navy_white_jeans_the_color_harmony

Cardigan                        Top                                              Jeans