.flatpickr-day.selected,
.flatpickr-day.startRange,
.flatpickr-day.endRange {
    background: #76cbe4;
    border-color: #76cbe4;
}

.flatpickr-day.selected:hover,
.flatpickr-day.startRange:hover,
.flatpickr-day.endRange:hover {
    background: #5bb8d4;
    border-color: #5bb8d4;
}