Is the following caution or warning of hazard sign orange or yellow? My impression is that it's color yellow, but the link says it's color orange. And even though the aforementioned link says caution or warning of hazard sign only has one color, in this other link there is more than one color (yellow, green). In addition, there is more than just one shape (diamond shape, rectangular). Thank you!
The picture you posted is of a yellow sign mislabeled as orange.
While some tints can be distorted depending on computer screens and color settings and individual perceptions may vary, verification of this specific example can be made by the context provided in your link.
Below you can see the published example of a construction area sign:
Several places below that is the one you posted in your question:
As you can clearly see the colors are distinctly different, yet the color description is the same. It's apparent that the graphic artist who created this copied their work and changed the color, but forgot to change the text. Trust your eyes!