Cobalt Blue is a natural, mid-tone blue alcohol marker with the code F40. Its hex value #2251A1 makes it useful for work that calls for a mid-tone tone in the blue family. It is part of the Finecolour Fineliner range.
Use for denim, deep water, evening skies, military and police uniforms, and corporate identity work.
Mixing & layering
Layer over Dusty Aquamarine (S058) for a smooth transition. Pair with Vivid Orange (J140) for deep shadow — it's the direct complement. For a triadic palette add Vivid Light Pink (B479).
Frequently asked questions
What is the hex code for Finecolour F40?
The hex code for Cobalt Blue is #2251A1. In RGB that is 34, 81, 161.
What colour is Finecolour F40?
It is a mid-tone blue alcohol marker.
Which Finecolour range is F40 in?
Cobalt Blue is part of the Finecolour Fineliner range.
What colours pair well with Cobalt Blue?
The direct complement is Vivid Orange (J140). Analogous neighbour: Dusty Aquamarine (S058).
What is Finecolour F40 used for?
Use for denim, deep water, evening skies, military and police uniforms, and corporate identity work.