Here are my favourite proposed Australian Flags. Happy to answer any questions. Note: Not all of these flags are of my creation these are just my favourite ... so far. https://www.facebook.com/underthesoutherncrossflag/ :
United Kingdom (British) Flag Colors - HEX, RGB, CMYK and PANTONE
Gazebo Guys: PMS Colour Chart
What exact colour is the Canadian flag? - Quora
File:Australian Aboriginal Flag (Pantone).svg - Wikipedia
Colours | Jotun
In choosing blue Pantone has missed the mark once more"
Colour Chart PMS Colours For Flags- Australian Flag Makers
Flag of Australia - Wikipedia
Precepts for a New Australian National Flag
Australia Flag Colors » Country Flags » SchemeColor.com
File talk:Flag of the People's Republic of China.svg - Wikimedia Commons