I went to babynames and I typed in blue and these are the names that came up.

Afina---Female---Not available or unknown---blueberry

Azura--- Female--- English--- clear blue sky
Indigo--- Female --- Latin--- dark blue color
Teal--- Unisex ---German ---- Greenish Blue Color
Yahto--- Male --- American-Indian --- Blue

I personally like Azura. I also typed in water and these are the names that came up.

Brooks--- Male--- English--- Running Water
Evadne--- Female ---Greek ---a water-nymp
Kenda--- Female--- English ---Water baby
Kenn ---Male ---Welsh--- clear water
Lindsey--- Unisex--- Englis----h Linden Trees Near the Water
Nixie--- Female--- German ---water sprite
Ran--- Female--- Japanese water lily
Skye ---Unisex ---Arabic--- Water giver
Tallulah--- Female--- American-Indian ---leaping water
Troy--- Male--- French ---Water or Foot soldier
Washington --- Male--- English--- town near water
Whitney---Unisex ---English --- from clear water
Wyatt--- Male ---French --- Water

Out of those ones I like Nixie. Well sorry if I was no help but those are some of the names that came up! Enjoy!