@adilkhan150785: To change the font of the entire site first you will need to create a child theme. If you do not know how to create a child theme you can Generate Child Theme Plugin.
Now Go to => Child Theme folder => Create a new folder “Fonts” => Download and paste the Museo 700 font files inside the fonts folder.
Then Go to => Child Theme Folder => Open style.css and paste the following Code.
@font-face {
font-family: 'Museo700';
font-style: normal;
font-weight: normal;
src: local('Museo700'), url('fonts/Museo700-Regular.woff') format('woff');
}
Go to => Appearance => Customize => Additional CSS and add the following CSS Code.
body {
font-family:Museo700;
}
/*To change color of Headline and Sub-Headline of Featured Content */
#featured-content .entry-title, #featured-content p {
color:#000080;
}
/*To main same color in primary sidebar */
.widget-title {
color:#000080;
}
/* To maintain same color in Contact Form in all pages */
label {
color:#000080;
}
You can change the color according to your requirement.
Let me know if this works out!
Kind Regards,
Skandha