Shades of Purple sold over 1.5 million units worldwide and was nominated for best pop album at the 2000 Spellemannprisen awards.

[4] They released a children's album, Synger Kjente Barnesanger, under the band name "Marit & Marion", which was nominated for a Spellemannprisen award[3] when they were both 12 years old.

[13][10] Raven and Larsen had previously been unaware of "Too Much Heaven"; the chorus was added at the suggestion of their producer.

[1] It had been released worldwide by the end of March, except in Sweden where a shipment of 20,000 copies was delayed for at least four weeks due to a legal dispute with a local band there that also used the name "M2M".

[14] In December 1999 Warner Music Group, which owns Atlantic Records, stated they expected to sell at least five to six million copies of Shades of Purple.

[15] Sales had exceeded one million by September 2000, though investors were disappointed as they had not yet recuperated the amount they had spent promoting the duo; they expected to break even before the end of the year.

[16] "Don't Say You Love Me" was released in October 1999 as the lead song from the Pokémon: The First Movie soundtrack.

[10] Promoted by a "nonstop marketing effort", advanced airing on Radio Disney and the affiliation with Pokémon, the single was successful.

[30] Additionally a music video, directed by Tryan George, was filmed in Norway for the song "The Day You Went Away",[36] which was released as a promotion single in Mexico.

The Village Voice's Robert Christgau stated that "even when the writing is ordinary, the quality teenpop, some assembly-line and some personalized, is transfigured by the duo's singing.

"[40] Heather Phares from AllMusic said "Overall, Shades of Purple is a strong debut from a young group that still sounds fresh and innocent ... something of a rarity in teen pop.

"[39] Michael Paoletta from Billboard gave a favourable review, saying "The 13 tracks on display here showcase a seasoned singing style that is, quite frankly, the antithesis of teen sensations like Britney Spears", concluding "Beautifully sun-kissed, Shades of Purple is poised to be the soundtrack of spring/summer 2000.