.pixel_sand1, .pixel_sand2, .pixel_sand3 {
    background-color: #C2B280
}
.pixel_sand4 {
    background-color: #a3956c
}
.pixel_sand5 {
    background-color: #82795a
}
.pixel_sand6 {
    background-color: #7e7658
}

.pixel_water1, .pixel_water2, .pixel_water3 {
    background-color: #161f6f
}
.pixel_water4 {
    background-color: #2140a3
}
.pixel_water5, .pixel_water6 {
    background-color: #3669d5
}