<div class="radikalwp-hv-color"><div class="radikalwp-hv-color-img" style="background:linear-gradient(135deg,#fbbf24,#f43f5e,#8b5cf6)"><//div><//div>

.radikalwp-hv-color { width: 220px; height: 145px; border-radius: 16px; overflow: hidden; cursor: pointer; }
.radikalwp-hv-color-img {
  width: 100%;
  height: 100%;
  filter: grayscale(1) contrast(.9);
  transform: scale(1.02);
  transition: filter .5s ease, transform .5s ease;
}
.radikalwp-hv-color:hover .radikalwp-hv-color-img { filter: grayscale(0) contrast(1); transform: scale(1.08); }