.bg-black  { background-color: #111111 }
.bg-gray   { background-color: #AAAAAA }
.bg-silver { background-color: #DDDDDD }
.bg-white  { background-color: #FFFFFF }

.bg-aqua  { background-color: #7FDBFF }
.bg-blue  { background-color: #0074D9 }
.bg-navy  { background-color: #001f3f }
.bg-teal  { background-color: #39CCCC }
.bg-green { background-color: #2ECC40 }
.bg-olive { background-color: #3D9970 }
.bg-lime  { background-color: #01FF70 }

.bg-yellow  { background-color: #FFDC00 }
.bg-orange  { background-color: #FF851B }
.bg-red     { background-color: #FF4136 }
.bg-fuchsia { background-color: #F012BE }
.bg-purple  { background-color: #B10DC9 }
.bg-maroon  { background-color: #85144b }

.bg-darken-1 { background-color: rgba(0,0,0,.0625) }
.bg-darken-2 { background-color: rgba(0,0,0,.125) }
.bg-darken-3 { background-color: rgba(0,0,0,.25) }
.bg-darken-4 { background-color: rgba(0,0,0,.5) }

.bg-lighten-1 { background-color: hsla(0,0%,100%,.0625) }
.bg-lighten-2 { background-color: hsla(0,0%,100%,.125) }
.bg-lighten-3 { background-color: hsla(0,0%,100%,.25) }
.bg-lighten-4 { background-color: hsla(0,0%,100%,.5) }