range,color
"K","#7570b3"
"O","#e7298a"
"M","#66a61e"
"H","#e6ab02"
"KO","orchid"
"KM","firebrick3"
"OM","green"
"KH","cyan"
"OH","cadetblue3"
"MH","tomato"
"KOM","aquamarine2"
"KOH","#d95f02"
"KMH","royalblue"
"OMH","#666666"
"KOMH","darkviolet"