This Cross Reference pdf, about 1.3MB in size, gives the paint numbers for other brands. It can be used both ways. In english and spanish, 5th edition,
Vallejo Cross Reference Chart Equivalent Values
Table of Contents:
Model Color
Tabla de comparación general/General equivalent chart – 4/5
Federal Standard – 6
RLM – 6
RAL – 7
Citadel Foundation – 7
Gunze -7
Humbrol – 8
Revell – 8
Tamiya – 9
Testor – 9
Model Air – 10
Game Color – 10
PANZER ACES
Federal Standard – 11
RAL – 11
Model Air
Tabla de comparación general/General equivalent chart – 12
Federal Standard – 13
RLM – 13
RAL – 13
Gunze/ GSI Creos – 14
Humbrol – 14
Life Color – 14
Revell – 15
Tamiya – 15
Testor – 15
Game Color
Tabla de comparación general/General equivalent chart – 16
Tabla de comparación general/General equivalent chart – 17
Citadel INK – 17
Citadel – 18
Reaper – 19
French