Here is the full list of all 13 Hue achievements. It takes around 5-6 hours to unlock all of the achievements on Windows.
Unlock Red Colour
Watch the credits
Unlock Pink Colour
Make 5000 obstacles disappear
Unlock Orange Colour
Unlock Purple Colour
Change colour for the first time
Unlock Aqua Colour
Unlock Yellow Colour
Unlock Lime Colour
Unlock Blue Colour
Complete the game
Collect all the mysterious fun secret beakers