"remains memorable" is correct and can be used in written English.
You could use it in a sentence like this: "The story of his heroic deeds and sacrifice remains memorable, even today."
The match remains memorable for Federer.
A month later, that game remains memorable.
It remains memorable mainly for the painful events surrounding its creation.
The song would become her unofficial theme and remains memorable enough to inspire tributes, for better or worse, six decades later.
I am thinking of Ivor Powell, a Welsh legend in this specialised field who managed Bradford City and Carlisle and whose clumsiness with words remains memorable even today.
Mourinho's assertion that Real's enemy are the puppet masters of Uefa's match officiating system is unlikely to be dismissed as mere paranoia in the stands of Stamford Bridge, where Barcelona advanced past Chelsea in a Champions League semi-final that remains memorable for a disastrous performance with cards and whistle by Tom Henning Ovrebo, the Norwegian referee.
In a flash, I was past the drive-in, but it remains a memorable image.
Thomson's home run remains a memorable moment in baseball history, even for those who are Dodger fans.
It remains a memorable partnership between the worlds of fashion and the White House, fueled by elements of old-Hollywood glamour, go-go '80s extravagance and a lifelong friendship.
Hilarious by the page, sometimes thanks to wit and frequently due to exhaustion, "Watt" is on the whole a chore to read, though it remains a memorable fantasy of a world where, to human ears, as one character imagines, the sounds of life would "demand nothing, ordain nothing, explain nothing, propound nothing".
Adaptations of Shakespeare, from "West Side Story" to "The Boys from Syracuse," have flourished from time to time, but it is notable that the early, more strongly plotted plays are remade most persuasively: the musical adaptation of "Othello" (which starred, of all people, Jerry Lee Lewis) remains a memorable oddity.
