Peggy Carter was first introduced on screen in Captain America: the First Avenger. The time was 1943. Popular cosmetic brands were Max Factor and Revlon. Here are some advertisements of that era.
By 1929 Elizabeth Arden had 150 stores. Victory Red was a popular color of the 1940s. Here are two colors Peggy would have also used: 2 Red Door Red and 33 Wildberry.
Estee Lauder officially launched her brand of cosmetics in 1946. The colors Peggy would have used (above) are 220 Shock & Awe and 300 Hot Streak.
Makeup wasn't heavily used during the war, especially with military personnel. Peggy would have used a soft gray/brown shadow, mascara, a light sheer pink blush and vivid red lipstick. Women were proud to wear red lipstick to show their femininity during the war. And with colors like Victory Red, one can see why. Nails would have been a bold red color.
Growing up in Los Angeles in the 70s/80s we visited Disneyland on a regular basis and often after school, before "Annual Passes".