Sal, I see them the same way as you do. However, the difference between them can be very small, and some people call all of them beige--beige meaning "light brown."
When my hair was dark, I wore them all, often mixed with black or other deep colours. Now that my hair is silver, I find that cool colours suit me best, so I no longer wear beige, camel, tan, etc. However, I think these shades can be beautiful and elegant on people like you who have a colouring where these soft warm tones are reflected. And they look lovely and interesting teamed with blue and aqua shades.