The five colors in the logo come from the colors of the Olympic rings, representing the positive and enterprising Olympic spirit. It is used here to symbolize leadership to connect people from all walks of life who are constantly striving for self-improvement and pursuing faster, higher and stronger team goals. THLDL stands for "Leadership in Tsinghua". From the website of Tsinghua Leadership Training Program, where Th stands for "Tsinghua"-Tsinghua, and ldl is composed of three initials of "Leadership".