ΔE 19.9, loose: different enough that you should pick on purpose. Solar Sand is noticeably lighter, warmer than Shin Gunto Gold.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 20). Solar Sand is noticeably lighter, warmer than Shin Gunto Gold.
The same difference applies the other way round: Shin Gunto Gold is noticeably 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.
See Shin Gunto Gold on the colour wheel See Solar Sand on the colour wheel
All matches: Shin Gunto Gold equivalents · Solar Sand equivalents