[ancarda]

Sure. I use the colors peachpuff+red and green+lightgreen when I need to show a success or error/warning box. Like so:

    .notice {
        padding: 1em;
        border: 1px solid black;
        margin-bottom: 1em;
    }
    .notice.warning {
        background-color: peachpuff;
        border-color: red;
    }
    .notice.success {
        background-color: green;
        border-color: lightgreen;
    }

I think the end-result is pretty nice.

[enhdless]

Nice. Pasted it in a fiddle: https://jsbin.com/teyupesuqu/1/edit?html,css,output