QLabel - text in multiple colors

Hello :)
how can i set multiple colors inside Qlabel text?
for example:
QLabel ql;
ql->setText("Hello World!");

i want that the "Hello" will be in blue, the "World" in red & the "!" in green
it is possible?
thanks in advance,
Gal

Code:

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ql->setText("<font color=\"blue\">Hello</font> <font color=\"red\">World</font><font color=\"green">!</font>");

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