ΔE 25.9, loose: different enough that you should pick on purpose. Sunrise Blue is noticeably darker, much more saturated than Morrow White.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 26). Sunrise Blue is noticeably darker, much more saturated than Morrow White.
The same difference applies the other way round: Morrow White is noticeably lighter, much more muted.
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 Morrow White on the colour wheel See Sunrise Blue on the colour wheel
All matches: Morrow White equivalents · Sunrise Blue equivalents