TUNE KillHill & Climbhill CL hubset - this happens sometimes, two different batches of blue anodising produce slighlty different shades, see images above.
 
KillHill CL 24h front hub - end caps can be configured to suit Q/R5, 12x100 & 15x100
ClimbHill CL 28h rear hub - end caps & FWB can be configured to suit, get in touch if your not sure or add details in comments section with order.