$gray-lightest: #F8F8F8; $gray-lighter: #EEEEEE; $gray-light: #DDDDDD; $gray: #CCCCCC; $gray-dark: #999999; $gray-darker: #666666; $gray-darkest: #333333; $green: #156F78; $purple: #493252; $red: #E25440; $slate: #3D4260; $primary-color: $slate; $secondary-color: #5BA4E5; $link-color: $primary-color; $hover-color: darken($link-color, 15%); $sans-font: 'Ubuntu', sans-serif; $serif-font: 'Source Serif Pro', serif; $border-radius: 3px;