When we first meet Sansa Stark, she's dressed in blues and furs—a classic Northern lady.
When it's time to get some face time with her (planned) future mother-in-law, Cersei, Sansa goes all out. She wears her best clothes. The instance of trying just a little too hard is classic Early Sansa.
As Sansa begins her journey away from her home in the North, her style becomes more Southern, but her color palette doesn't. This is a girl who is true to her roots, no matter how eager she thinks she is to move on.
When things start to get dire for Sansa and her family, her fashion starts to reflect her desire to hide. The loose-fitting gowns and giant sleeves that seem to swallow her up are all in line with Sansa's desire to become invisible at court.
By Season 2, Sansa was wearing the same style, but subtly inching back toward the greys and blues she wore when she lived at Winterfell-maybe this was her silent way of saying she was still a Stark, no matter how much she pretended to want to be a Lannister.
In one memorably horrible moment in Season 2, Sansa's beaten and her clothes are ripped from her body in court. If Sansa's clothes have been her armor and her way to hide, this moment proves the hiding won't be enough. She'll have to learn to play the game.
When Sansa gets her period for the first time, she's wearing the same pale blue she favored in Winterfell—a color we won't see her wear again. Goodbye, childhood.
In Season 3, purple becomes Sansa's signature color. Maybe it's her way of trying to mix Lannister red with Winterfell blue. Maybe it's an expression of how she's growing up and becoming a darker person.
At Sansa's wedding to Tyrion, she wears one of her most beautiful and most symbolic dresses. It's gold and trimmed with lions, the Lannister sigil. The family is clearly sending Sansa a message: You belong to us now.
At Joffrey's ill-fated wedding, Sansa is still wearing her signature dark purple—a sign that she wasn't expecting her life to change that day.
At the end of Season 4, after helping Littlefinger cover up her Aunt Lysa's murder, Sansa reemerges with a new, bold style: a stunning black dress, a homemade statement necklace, and darker hair. At this point, she's ready to embrace the dark side—working with Littlefinger.
When she returns to Winterfell in Season 5, Sansa maintains her dark look, but tones down her feathered shoulders, covering her dress with a cloak, as if to symbolize the loss of power she feels around the Boltons.
In Season 5, when Sansa meets with Littlefinger to hear his apology for leaving her in Ramsay's psychotic hands, she dresses in sleek, dark clothes to match his. They're equals when it comes to playing the game.
When it's time for the battle of the Bastards, Sansa rides out to watch the war looking the part of a Northern general. This is the first time we see Sansa in the thick furs we associate with the power players in the North because she's finally ready to be one.
Season 7 has seen Sansa dressing a lot like the show's other badass women—Daenerys and Cersei. She's wearing all black, battle-ready clothes, but accessorized with fur because, of course the North remembers.