问带有插值的sass $ concatenate

EN

$msg: #669bdf;
$msg-h:  #548ed8;
$msg-a: #3873be;
$suc: #1cBB9c;
$suc-h: #10b091;
$suc-a: #10947a;

@each $color in $color-list {
  .#{$color} {
    background-color: #{$#{$color}};
    &:hover {
      background-color: #{$#{$color}}-h;
    }
    &:active {
      background-color: #{$#{$color}}-a;
    }
  }
}