Hello  Krishnapriya

You change color using override css/less .

Using override kanban view css/less and if you want to change only specify kanban view color than you create custom class and call your class on that view

.o_kanban_view .o_kanban_record {
    background-color: white; (Change this for change kanban view background color )
    box-shadow: 0px 0px 1px 1px #808080;
    padding: 8px 8px;
}

I think it's help you.