body.template-customers-account header.site-header,
body.template-customers-login header.site-header,
body.template-customers-register header.site-header {
  background-color: #1c2228 !important; /* Cambia a tu color */
}

body.template-customers-account header.site-header a,
body.template-customers-login header.site-header a,
body.template-customers-register header.site-header a {
  color: #1c2228 !important; /* Texto blanco */
}