Colour of form submission fields

How do I change the colour of the form submission fields and buttons? At present both the contact form and comments form display in a brown colour.

 

Hello,

Paste the code given below in Custom CSS section
(Appearance -> Theme Options -> Styling Options -> Custom CSS) of your dashboard.

Code:

#commentform input[type="text"] {
border: 1px solid yellow;
background-color: red;
}
#commentform input[type="text"]:focus, textarea#comment:focus {
background: orange;
border: 1px solid yellow;
}
textarea#comment {
border: 1px solid yellow;
background-color: red;
}
#respond input#submit {
border: 1px solid yellow;
background-color: red;
}
#respond input#submit:hover {
color: black;
}
 
#contactForm input[type="text"] {
border: 1px solid yellow;
background-color: red;
}
#contactForm input[type="text"]:focus, #contactForm textarea:focus {
background: orange;
border: 1px solid yellow;
}
#contactForm textarea {
border: 1px solid yellow;
background-color: red;
}
#contactForm input[type="submit"] {
border: 1px solid yellow;
background-color: red;
}
#contactForm input[type="submit"]:hover {
color: black;
} 

In place of "red", "yellow", "orange" and "black" you can put your color or color code.
This will solve your issue.