  We calculate the rapidity gap survival probability associated with the Higgs
decay and Higgs plus dijet production in proton-proton collisions by resumming
the leading non-global logarithms without any approximation to the number of
colors. For dijet production, depending on partonic subprocesses, the
probability involves various `color multipoles', i.e., the product of 4 ($qq\to
qq$) or 6 ($qg\to qg$) or 8 ($gg\to gg$) Wilson lines. We calculate all these
multipoles for a fixed dijet configuration and discuss the factorization of
higher multipoles into lower multipoles as well as the validity of the
large-$N_c$ approximation.
