How to change various button colors

I need help on how to change the color of the buttons on the following items:

  1. the magnifying glass on the first page under “Nothing Found”
  2. the magnifying glass on the menu’s search feature
  3. the “subscribe” button on the page’s footer
  4. and lastly, the “send” button on the CONTACT PAGE

All have the same color code #ff6b53 and I need them to be #592728
any help is greatly appreciated.

There you go:

html input[type="button"],
input[type="submit"] {
    background-color: #592728;
    box-shadow: 0 5px 0 #281313;

Drop this in a custom CSS plugin / change #281313 if you need a different color for the shadow.

Thank you very much! It worked wonderfully!