So, I'm trying to create an border of 1px, with a color 30% green, 20% red, 27% blue, with 70% of opacity, it is possible? I'm using sass but I have not found a way to make this

```
.box
  width: 100px
  height: 100px
  background: gray
  margin: 50px auto 0 auto
  border-color: #ff0000 #0000ff

```

My pen: <http://codepen.io/mejingjard/pen/xwxLKO?editors=110>