Color typically goes in one of two ways: integral color mixed into the concrete itself, which gives consistent tone through the slab, or color hardener broadcast onto the surface before stamping, which also adds surface density and helps the pattern take cleanly. Accent colors can be added with a release agent during stamping for more depth and variation, especially on patios and pool decks where a stone or slate look benefits from tonal variation rather than one flat color.
Pattern choice, slate, stone, brick, or a cobble look, comes down to what fits the house and the space. A pool deck often does better with a pattern and texture that stays comfortable underfoot when wet, while a driveway pattern needs to hold up to vehicle weight without the pattern edges breaking down over time. These choices get walked through during the free estimate based on the actual project.