I went through Purdue OWL's guide to usage of commas: http://owl.english.purdue.edu/owl/resource/607/1/
I have a doubt in the following exercise:
Exercise 1 (http://owl.english.purdue.edu/exercises/3/5/15/)
says that the following sentence is correct and does not require the use of commas:
The uninvited guest wore a dark blue tweed suit.

But, can you insert a comma between dark and blue and claim that "dark" and "blue" are co-ordinate adjectives that describe the tweed suit. (Rule 6 as per guideline)

Question

I went through Purdue OWL's guide to usage of commas: http://owl.english.purdue.edu/owl/resource/607/1/
I have a doubt in the following exercise:
Exercise 1 (http://owl.english.purdue.edu/exercises/3/5/15/)
 says that the following sentence is correct and does not require the use of commas:
The uninvited guest wore a dark blue tweed suit.

But, can you insert a comma between dark and blue and claim that "dark" and "blue" are co-ordinate adjectives that describe the tweed suit. (Rule 6 as per guideline)

anonymous · Answer

Blue is a dark color.  So, dark blue is one idea.

anonymous · Answer

http://www.getitwriteonline.com/archive/042301comcoordadj.htm Take a look at this information. It may help you to understand.

anonymous · Answer

Thanks, Peeps.  Your getitwriteonline information is very useful.

anonymous · Answer

No problem!  :)