IJA #30 Karekusa iro (Dry Grass) vs Sand Yellow

How close are they?

ΔE 6.7, close: similar, with a visible difference side by side. Sand Yellow is a little lighter, warmer than IJA #30 Karekusa iro (Dry Grass).

Can I use Sand Yellow instead of IJA #30 Karekusa iro (Dry Grass)?

Usually, if you are not matching paint already on the model. Close match (ΔE 7). Sand Yellow is a little lighter, warmer than IJA #30 Karekusa iro (Dry Grass).

Can I use IJA #30 Karekusa iro (Dry Grass) instead of Sand Yellow?

The same difference applies the other way round: IJA #30 Karekusa iro (Dry Grass) is a little darker, cooler.

ΔE is the colour difference between our two swatch estimates: under about 6 is close, over about 15 is loose. Real paints also differ in finish, coverage and how they thin, so test before you commit.