Using a single 0-1 array with pcd.colors = o3d.utility.Vector3dVector()

[SpatialDigger]

I have a numpy array of values which relate to the points in the point cloud. Same length/order etc.

I'm trying to color the point cloud with these values, I can normalise them 0-1.

When I have rgb values in an array, e.g. array([[255,255,255] ... [213,128,34]]) or in three lists, I can add the colors like so:

pcd.colors = o3d.utility.Vector3dVector(np.asarray(colours[['red', 'green', 'blue']] / 65535))

But with a single array, e.g. ([0.0, 0.1, 0.456, 0.564, 0.731, 0.97, 1.0]) how do I map these so that the open3D color maps are used?