What color is Yennefer's eyes?
Throughout the Witcher franchise, Yennefer of Vengerberg is a mage with a vibrant violet eye color. The distinct characteristic of purple eyes is almost completely unique to this powerful character and can be replicated with a pair of our colored contact lenses with ease.
It's obvious Henry Cavill is wearing contacts but Yennefer's eyes look like they were changed in post-production. just sent me this article. Anya Chalotra couldn't wear the contacts because she has problems with them.
A skilled sorceress and the eventual love of Geralt as depicted in Andrzej Sapkowski's books and in the CD Projekt Red video game series (save for The Witcher 3 where Geralt has additional love options), Yennefer is described in canon as having "a pale triangular face, violet eyes, and narrow, slightly contorted lips."
I thought Yennefer had purple eyes, but during the show you see that her eye color changes to blue. And in the 7th episode of season 2, it's even green at some points.
Sadly, Yennefer was left fuming and believed she didn't love Geralt and it was simply the djinn's magic which was behind it. Yennefer is said to be Geralt's true love, so it would suggest their feelings are genuine. Saying this, their romance will be a tumultuous one throughout The Witcher stories.
Aretuza convinces Yennefer she needs to undergo a procedure to give up her ability to produce children in order to have power and obtain beauty over her deformities. We know that she is not a mentally stable character, yet no one attempted to provide her with the repercussions of her choice.
As Yennefer explains to Istredd, her biological father was a half-elf. This elvish heritage was responsible for her deformities, but also for her natural familiarity with magic.
The Deathless Mother is first introduced in the second episode, "Kaer Morhen." She appears as a cloaked figure to Yennefer (in red), Fringilla (in black), and Francesca (in white) and lures them to her hut with no doors in the woods.
The viewer meets Yennefer in the second episode, a young woman with a physical disability who is bullied and abused by local villagers and her own family. Born with a curved spine and partial facial paralysis, we first see her attempting to return a flower lost by her neighbors, who immediately attack and belittle her.
She is only 13 years old when she graduates as a sorceress from Aretuza after three years of studies. However, as mages can halt their aging, Yennefer is actually 75 when she meets Geralt of Rivia for the very first time in 1248, which may surprise fans of the Netflix show.
Why do Geralt's eyes turn green?
Geralt has yellow eyes due to the mutations he had to undergo in order to become a full-fledged Witcher. This process is known as the Trial of the Grasses, in which only three in ten boys survive.
Anya Chalotra (born in 1996) is an English actress known for playing Jennifer Ashman in the British TV show Wanderlust (2018) and for her role as Yennefer of Vengerberg in the Netflix series The Witcher (2019). Chalotra was born in a British-Indian family. Her father is of Indian descent while her mother is English.

8/16 The Hunchback of Vengerberg
Yennefer of Vengerberg was born a hunchback, complete with crooked shoulders and a distorted frame. This deformity was the source of much strife in her childhood, ultimately leading her father to leave as he was disgusted by her appearance.
Ciri eyes change color at times.
Geralt is a father figure to Ciri, and Yennefer is like a mother to her, as she's also unable to have children.
9/15 YENNEFER'S ATROCITY: Cheating On Geralt
For starters, there are multiple instances in the story where Yennefer has slept with people behind Geralt's back, causing the witcher no end of grief when he found out.
In 1266, after receiving a letter from Geralt, she traveled to the Temple of Melitele in Ellander to teach Ciri. Even though at the beginning the two of them didn't get along well at first, they later grew a mother-daughter bond. Yennefer first taught Ciri about magic and how to harness chaos.
Anya Chalotra, who plays Yennefer had beautiful purple eyes. The contacts that change the color of darker eyes, like Chalotra's, are much thicker than the ones that can be used to change light eyes. They used a combination of contacts and CGI to make her eyes purple.
Many sorcerers are infertile, but nobody knows exactly why. In the show, however, Yennefer's infertility is the direct result of her physical transformation. She decides to sacrifice her uterus in exchange for beauty, a choice she later comes to regret.
Even in the books, Yennefer was famed for her beauty. She was often described as having “raven black hair” that fell down her shoulders in “curls”, and piercing “violet eyes”. Words such as “ravishing” and “menacing” (“Sword of Destiny” by Andrzej Sapkowski) were used to present the sorceress.
How much did Yennefer's dad sell her for?
He then creates an untraceable portal to send Yennefer back home. Having been marked from her portalling from Aretuza, a sorceress named Tissaia de Vries finds Yennefer and purchases her for four marks from her stepfather, less than half the price of a pig.
Yennefer was born with a ” twisted spine” and on the Netflix series she has a jaw deformity as well. Yennefer says this was due to her father being a half-elf, although there are many people of mixed elfin blood that are born normally.
This happens 105 years after the main story of the books, in which case Geralt would be 155+ at that point. Unrelated to the question, we know that Yennefer is exactly 94 years old in the books, so she would be 100 in the game.
The elven-blooded Yennefer of Vengerberg is often considered the most powerful living sorceress, having pushed beyond her initial struggles with magic to learn how to control her Chaos, granting her considerable power.
The worst instance of this in the books is when Ciri grows up and Yennefer feels threatened by her adoptive daughter's closeness with Geralt — something that she quickly grows out of. In the games, this jealousy is somewhat understandable...