Hi, add the following code in Appearance->Customize->Additional CSS
a,
.footer-widget-area a:hover,
.footer-widget-area a:focus,
.footer-widget-area a:active,
.entry-title a:hover,
.entry-title a:focus,
.entry-title a:active,
.cat-links a,
.comment-meta a,
body:not(.search):not(.single-jetpack-testimonial) .jetpack-testimonial .entry-title a,
body:not(.search):not(.single-jetpack-testimonial) .jetpack-testimonial .entry-title,
.jetpack-testimonial-shortcode .testimonial-entry-title,
.site-info a:hover,
.site-info a:focus,
.site-info a:active {
color: #FFFFFF;
}
button,
input[type="button"],
input[type="reset"],
input[type="submit"],
#infinite-handle span,
.button,
.main-navigation,
.hero-content-wrapper .cat-links a,
.main-navigation ul ul {
background-color: #FFFFFF;
}
input[type="text"]:focus,
input[type="email"]:focus,
input[type="password"]:focus,
input[type="search"]:focus,
input[type="url"]:focus,
input[type="tel"]:focus,
input[type="number"]:focus,
textarea:focus {
border-color: #FFFFFF;
}
.jetpack-social-navigation ul li {
background: #FFFFFF;
}
Replace #FFFFFF; with whatever hex code value you want and it should change everything that is a light blue into the color you choose:
https://htmlcolorcodes.com/color-picker/