This scene is very warm, but high saturation apparel remain unaffected by the warm grade. Because of their more neutral balance and high saturation these items stand out quite a lot. It’s slightly distracting to me because they don’t quite fit in, but perhaps it indicates a rising popularity of saturated synthetic fabrics, which at the time were breaking new ground on a regular basis. According to http://www.straw.com/sig/dyehist.html in 1956 “One person working out of every 7 in the USA received his income from work performed in textile or apparel industries”
The interesting thing about this scene is that the colors that stand out are not worn by the main characters, they are not to draw attention to the dialogue but perhaps to draw it away. Most of this scene is posturing, the intermingling of people, winding down previous events and a calm before the storm to come. The dialogue itself is fairly benign.