As stated, this is not correct.
One should NEVER make categorical statements of this sort on an international website.
First one MUST specify that the sui juris Churches of the East have their own proper discipline. That is point one.
Point two is that with the Occidental Church, there are various provisions for the use of blue, by way of privilege – and one must always keep in mind that peoples from all over the world visit this website…not merely people of the United States… My colleague, Father McNamara, well explains this matter in the following article:
Finally, normative liturgical colours are white, green, violet, rose, red, and black. However, one may make use of, for example, vestments that are more precious to celebrate significant occasions – such as vestments in gold or silver. This is a fundamental premise in liturgical law.