The favored shade of blue for females in politics

This morning a tipster directed me to the Drudge Report's side-by-side comparison of Hillary Clinton and Margaret Thatcher wearing the same "Thatcher Blue" (link).

It reminded me of another woman in politics, Barbara Bush the elder, who also famously liked to wear bright "Barbara blue."

It makes sense for a woman seeking popularity to wear blue, since it's well-established that blue is the #1 favorite color of people everywhere.  This particular bright, primary blue is the kind of intense color that children tend to respond to well.  Maybe these ladies are trying to evoke happy childhood feelings in us?  Or maybe choosing this super-charged blue is a way of taking the conservatism and respectability of darker blue and making it eye-catching and exciting.