If someone is described as being 'tactile' which of the five senses does it relate to?

Tactile is an adjective related with the sense of touch. The full definitions of the word are:

1. perceptible by touch
2. of, relating to, or being the sense of touch

Example sentences with the word:

1. He not only had visual difficulties but tactile ones, too—witness his grasping his wife's head and mistaking it for a hat.
2. There is a tactile and therefore somatic dimension to stroking the chalk that keeps the artist in constant, responsible and responsive touch with his emerging creation.
3. You know that humans have visual and aural memory, but, in fact, we possess tactile memory as well, which is organized somatotopically.