  We derive an effective colour chiral action with a background gauge field.
The action describes configurations of soliton-skyrmion type. Kinetic term
constant $f_0^2$, analogue of $f_\pi ^2$, is a phenomenological dimensional
parameter of the model; $d=4$ terms are unique up to the choice of background
gauge field. The case of SU(2) colour group is discussed in detail. We study an
isolated configuration, i.e. a configuration in a background field which is the
vacuum field forming the gluon condensate. Thereby we introduce the condensate
energy as a second parameter and scale. Compared with the case of flavor
skyrmion configuration, the colour chiral action contains a piece with slowly
decreasing terms coming from the background vacuum field. Asymptotic behaviour
at large distances shows exponential decrease for the case of chromomagnetic
condensates and periodic otherwise . This defines a stability region for a
colour soliton. The mass is given by the positive definite integrand for a
soliton of purely bosonization origin. Contribution from the Yang-Mills action
of the background colour field has the sign opposite to bosonization part. The
baryon number current is not influenced by the background field and leads to
the standard baryon number $B=N_F/N_C$ . For $B=1/3$ we evaluated the estimate
from above $M\approx 460$ $Mev$ .
