Now that I know that you're talking about dress shirt colors . . .. . . that makes a difference. I'll stand by my statement that most stronger colors, other than yellow, will work well with the British tan khakis (which are indeed a stronger and yellower tan than the photo you used to illustrate - the fact that you used a woman rather than a man excited the wags in the audience to chime in, of ... More @Wikipedia
Hover over any link to get a description of the article. Please note that search keywords are sometimes hidden within the full article and don't appear in the description or title.