Ok people, the argument of brawls pink suit is getting rather annoying now (as someone said, it was a big debate on the ZSS boards too)
Since we're all being major fussy about exact colours of pink/purple here, brawl technically uses a shade that neither Super, Zero Mission, or M1 use.
M1's missile varia suit is too much on the "hot pink" side, but it does have a blue visor so extra points for it, but brawl's isn't completely pink and does not sport red boots, so it's not M1s. (
http://tsgk.captainn.net/sheets/nes/metroid_samusaran_sheet.png )
Super Metroid is a much darker game and uses darker shades to colour the sprites. Super also has a green visor. Overall, this shade is more on the darker magenta than brawl's "pink" (
http://www.spriters-resource.com/nintendo/metroid/supermetroid/smsamusgravity.gif )
By contrast, Zero Mission is much more cartoony and colours sprites with lighter shades rather than darker. It can be said that the Gravity suit in this game is identical to Super's, minus 90% of the shadowing. It's pretty much magenta with a green visor (
http://tsgk.captainn.net/sheets/gameboyadvance/metroidzeromission_samus-gravitysuit_sheet.png )
Now when you go and look at brawls pink suit, it has a blue visor, and is not considered magenta like the 2d Gravity suits are. Had it's hue been shifted -15 and sported green lights, then I'd be more inclined to agree with the Zero Mission/Super argument. (
http://img126.imageshack.us/img126/7446/brawlsamusrc7.jpg )
Moral of the story: brawl uses it's own colour. Stop complaining.