Red
When she was a young girl, still in training in Themyscira, red was danger. Red were the Amazons pretending to be enemy warriors as they trained to fight off an invasion of the island, no matter how remote that possibility was.
When she first heard J'onn's cry for help in her mind, red was the colour of the Champion's armor she knew she would have to steal in order to reach Man's World and help them with whatever situation they were facing.
After spending some time in Man's World, red, to her, became synonymous with The Flash and his boundless enthusiasm and energy.
After the Gorilla City incident, as she'd taken to calling it, Shayera had teased her for ages about the blush that had stained her cheeks after she had kissed the Dark Knight to thank him for his concern for her. And her perception of the colour red changed again. Now it was attached to the blush staining her cheeks every time she thought of that incident, and unknown feelings that were growing in her for him.
Then came the 'incident' in Las Vegas. After that, after John and Shayera began 'dating' as it was called here on Man's World, red was now associated with hidden longings and a love she couldn't bring herself to admit to him. It was now associated with the love she realized she felt for the man who she now thought of as her knight after she had seen Shayera's red hair disappearing into John's room one day, and it had brought about a wave of longing that she still did not fully understand.
Later, after the Thanagarian invasion, the colour was the colour of Bruce's lips after she had kissed him in that little restaurant. He could keep on thinking she had kissed him to help them escape the attention of the hawk – men, she knew better. She'd kissed him because she wanted to, and would not have for any other reason.
Later, after the Unlimited expansion, red was anger. How DARE he refuse her for those STUPID reasons? She'd literally seen red that day, beating up training drones until there were none left for her to destroy.
Two years after the Circe incident, red, for her, changed again. Now the colour was weddings and happiness. He'd come to her the day after giving her those pitiful reasons, and apologized, agreeing to give their relationship a try – she privately suspected Alfred of being the reason behind his change of heart. They had come a long way since then, from those delicious stolen kisses, to her meeting the Bat – clan, to consummating their relationship and finally telling the rest of the League – she still laughed when she remembered the look on Wally's face – to their wedding today. The red gown she wore today, she knew was something she would always treasure.
And today, the colour red changed for the last time in her life, as she was handed the girl she had given up her immortality to have. She looked down at her baby daughter, little Jennifer Shayera Wayne, wrapped in the deep red blanket her godmother Shayera had gotten her, and knew the thrill of holding her daughter for the first time, she knew that thrill would forever be associated with the colour red.
