If you're trying to express the concept of hue, you would need to use a more descriptive phrase. For example, you could say:
* Ke kala o keia mea (The color of this thing)
* Ka leo o keia kala (The tone of this color)
* Ka malu o keia kala (The shade of this color)
The specific phrase you choose will depend on the context and the specific nuance of the hue you're trying to convey.