Every Army Painter paint on The Painters Desk (468 in all). Pick one to see its closest matches in the other brands. Swatch colours are estimates.
The Army Painter is a Danish hobby company. Its Warpaints Fanatic range is a large set of dropper-bottle acrylics built around colour triads, and Speedpaint is its one-coat range, painted over a light primer.
The Painters Desk lists 468 Army Painter paints in 4 ranges (Warpaints Fanatic: 210, John Blanche Vol. 1-4: 40, Warpaints Air: 129, Speedpaint 2.0: 89). By type that is 310 opaque base and layer paints, 81 one-coat contrast-style paints, 48 metallics, 24 washes and shades, 3 technical paints, primers and mediums, 2 fluorescents and effects.
ΔE is the colour difference between two swatches (CIE76): under about 6 looks close side by side, over about 15 is a loose substitute. These figures compare our estimated swatches, so treat them as a guide, not a guarantee.
Some of the closest pairs: