Combining @ and [*] in one function call?

Situation: I have an array(array(int)) of arguments, which I'd like to
pass through a function which takes a series of int arguments. Is
there a way to do this without a lambda?

colors = lambda(array x) {return GTK2.GdkColor(@x);}(color_defs[*]);

This works, but it's not exactly readable. I could go for an explicit
loop and use @, or I can use a lambda to do the @-ing and something
like this, but neither's as clear as what I'd like to do:

colors = GTK2.GdkColor(@color_defs[*]);

Is there a way to combine them into something that concise?

FWIW, color_defs = ({
    ({255, 255, 0}),
    ({127, 0, 127}),
    // ... ... ...
}), and GTK2.GdkColor wants three separate arguments, red/green/blue.

ChrisA