How we picked
- Blue is the main colour on the receiver, slide, blade or gloves, not just a detail.
- A range of styles. Metallic finishes, water-like camo, illustrated designs and patterned gloves.
- Rifles, pistols, SMGs, knives and gloves are all represented, with an extra focus on the M4A1-S, which has several strong blue options.
- Shared finishes. Where the same finish exists on a gun and a knife, we include both so you can match them.
Highlights
The M4A1-S gets four very different takes, from the metallic M4A1-S | Blue Phosphor to the camo M4A1-S | Bright Water. The Bright Water finish also exists on knives, so the Karambit | Bright Water and the M9 Bayonet | Bright Water match the rifle of the same name.
Before you choose
Blues vary a lot between items, from deep cobalt to light cyan. If you want a uniform look, compare the catalog images side by side. Some of these skins have narrow float ranges, so check which exteriors exist on each page, and see the exteriors guide for the basics.