bootstrap 4 custom button color code example
Example: custom color bootstrap buttonm
.btn-primary, .btn-primary:hover, .btn-primary:active, .btn-primary:visited {
background-color: #8064A2 !important;
}
.btn-primary, .btn-primary:hover, .btn-primary:active, .btn-primary:visited {
background-color: #8064A2 !important;
}