the current code is below
.wrap {
display: flex;
gap: 30px;
}
.item {
flex-basis: 382px;
background-image: url(https://i.ibb.co/Jn6J3qN/card.png);
background-repeat: no-repeat;
background-size: сontain;
flex-basis: 382px;
min-height: 218px;
border-radius: 20px;
box-shadow: 0px 4px 20px 0px rgba(0, 0, 0, 0.25);
padding: 32px;
}<div class="wrap">
<div class="item"></div>
<div class="item"></div>
</div>>Solution :
Just set .item background linear-gradient and also set parameters for it.
You can use this colour picker tools, like this website: https://cssgradient.io/, to set linear-gradient parameters.
.wrap {
display: flex;
gap: 30px;
}
.item {
flex-basis: 382px;
background: rgb(12,28,87);
background: linear-gradient(156deg, rgba(12,28,87,1) 0%,
rgba(83,81,147,1) 100%);
background-repeat: no-repeat;
background-size: сontain;
flex-basis: 382px;
min-height: 218px;
border-radius: 20px;
box-shadow: 0px 4px 20px 0px rgba(0, 0, 0, 0.25);
padding: 32px;
}<div class="wrap">
<div class="item"></div>
<div class="item"></div>
</div>