ΔE 17.8, loose: different enough that you should pick on purpose. Wazdakka Red is noticeably darker, cooler than Ruby.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 18). Wazdakka Red is noticeably darker, cooler than Ruby.
The same difference applies the other way round: Ruby is noticeably lighter, warmer.
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 Ruby on the colour wheel See Wazdakka Red on the colour wheel
All matches: Ruby equivalents · Wazdakka Red equivalents