blue-black

blue-black (plural blue-blacks)

1. A very dark blue.

   blue-black:  

2. Black with bluish highlights.

blue-black (comparative more blue-black, superlative most blue-black)

1. Of a very dark blue.
2. Black with bluish highlights.

• blue-black ant fly (Microdon piperi)
• blue-black bulldog fly (Alipumilio nigrocoeruleus)
• blue-black grassquit (Volatinia jacarina)
• blue-black grosbeak (Cyanoloxia cyanoides)
• blue-black hover fly (Orphnabaccha coeruleus)
• blue-black kingfisher (Todiramphus nigrocyaneus)
• blue-black mud-dauber wasp (Chalybion californicum)
• blue-black plated sand lizard (Cordylosaurus subtessellatus)
• blue-black seedeaters (Amaurospiza spp.)
• blue-black soil slug (Arion hortensis)
• blue-black spider wasps (Anoplius spp.)
• blue-black spruce aphid (Cinara hottesi)
• blue-black urchin (Echinothrix diadema)