Just came back from the WEBS website. It appears
as if the needle tips sold separately
are a honey colored wood only,
and did you read the following info?:
"Tips have a cuboid shape
in the body of the needle that gradually gives way to perfectly tapered birch wood points. The ergonomic shape is comfortable to hold, lessens the need to grip tightly, and yields uniform stitch formation....."
I don't think the multi-colored, color-coded set has cuboid
-shaped needle stalks, do you?
EDITED TO ADD:
Your link led to the CUBICS tips, hence the name. "Cuboid" shape. (honey colored wood)
In clicking around, stumbled upon the DREAMZ needle tips which are
the color-coded needles (stalks).