Here's a list of all the potential color-related names, only a few were somewhat thought-out characters. 

*Asterisk next to the main characters

Red

Scarlett: girl → became Kara (Nikolas's sister-in-law); Kara means love, which is associated with the color red

*Roux: means brownish-red or russet; boy → became Nikolas

Russett: girl

Orange

Coral: tanned skin girl with platinum blonde hair; tattoo: orange handprint on knee → became Damara (who y'all have not been introduced to)

Opal: blonde girl; tattoo: orange line from widow's peak to the tip of her nose → possibly became Chryssa (Yellow mutual friend of Nikolas)

*Russ: tattoo: orange band around wrists; feels like he's in shackles. A prisoner to Iris and she commands him to deliver her message → became Lysias

Yellow

Xanthe: girl with bright pink hair, means golden yellow; tattoo: dots at the bottom of each finger and a line running down each finger to dot → This IS one of the characters because her name is Greek! Y'all were introduced to her in the Red section, but I don't think anyone called her by her name. She is an important character in the Orange section

*Maize: girl with short, ginger hair; tattoo: yellow band around her arm with five lines trailing down her arm; personality: rebellious, mischievous, thief; wants to escape the island and see the world → became Pam who I renamed to Senai (more about her later)

Aurelia: girl, means golden; tattoo: yellow claw slash on neck; she has dark brown skin and dark brown wavy hair

Green

Ridi/Viridian: girl

Beryl: means green stone; boy

Hunter/Theron: boy

*Sage: transgender boy → became Damon who is a transgender boy (spoilers)

Kelly: girl; based on the color kelly green

I actually drew a picture of Kelly.

She has long scarlet red hair and a limp (her left leg is paralyzed? I hope that's the correct term), so she uses a tall stick to walk and balance. She has a tattoo with every color: blue on the right cheek, yellow on the left cheek, purple on the right knuckles, red on the left knuckles, and I believe the green and orange tats are on her legs. I don't know if she was supposed to replace Christina as the chosen one or if she was a special "cursed citizen."

Blue

Cian/Cyan: boy

Azure: girl with purplish-blue highlights in her black hair

Mazarin: girl; means dark blue in French

Violet

Mauve and Morado: cousins with African ancestry and grey eyes. Mauve (girl) could see the future. She had long black braided hair that was pulled up into a bun. Morado (boy) was part satyr (I believe I came up with this detail later on).

Tyrian: boy

...

The evolution of the main characters' names will be in the next chapter.