Add this code to the Custom CSS field on the Style tab of your Pricing Table widget’s settings:
.eapps-pricing-table-column-1 .eapps-pricing-table-column-title-text {
color: rgb(204, 127, 51) !important;
}
.eapps-pricing-table-column-2 .eapps-pricing-table-column-title-text {
color: rgb(192, 192, 192) !important;
}
.eapps-pricing-table-column-3 .eapps-pricing-table-column-title-text {
color: rgb(255, 215, 0) !important;
}