ΔE 14.1, fair: the same colour family, but not a straight swap. Sun Bleach Yellow is noticeably darker, more saturated, warmer than Cosmic Dust.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 14). Sun Bleach Yellow is noticeably darker, more saturated, warmer than Cosmic Dust.
The same difference applies the other way round: Cosmic Dust is noticeably lighter, more muted, 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 Cosmic Dust on the colour wheel See Sun Bleach Yellow on the colour wheel
All matches: Cosmic Dust equivalents · Sun Bleach Yellow equivalents