As of now, the HTC One S smartphone was available only on dull Blue/Gray color. But from November 7th onwards, it will be available in Black color in T-Mobile. But the new version will not be available in retail stores you can get this only from the T-mobile website and the customer care department.

They do not reveal any color specific pricing, so we imagine it will be available at the same price as the Blue/Gray HTC One S. It will sport the same features as specs as the current blue/gray model, which we have listed below for your reference:
Android 4.0 Ice Cream Sandwich (Upgradable to Android 4.1 Jelly Bean)
16 GB Internal Memory
1650 mAh battery
8 MP Rear Camera / VGA front camera
It beats the audio
1 GB RAM
4.3″ qHD Super AMOLED display (540 x 960 pixel resolution)
1.5 GHz dual-core Snapdragon S4 processor