Which Title / H1 should I use Choice 1: Blue Color Combinations | Blue Color Schemes | Blue Color Palettes or Choice 2: Blue Color Combinations, Schemes, Palettes
Second one, definitly. You are repeating the same words (Blue Color) over and over again on the title. This can be viewed as keyword spamming by Search engines.
Use 1st one. Bcoz.. word is repeating in heading only not the whole phrase. One can use various keyword combinations but, the length should be limited.
Second one is the best but still you can do some modification in it.Try to write it as a sentence, it will be batter.
In my view first option is better.As length should get first priority and which is limited , keyword combination second
Decide for one option and then check it with this keyword research tool. Your choice 2 keywords are: Blue Color Combinations Schemes Palettes so you can try this: Blue Color Combinations | Schemes | Palettes
Thanks for all of the comments. I really appreciate it! If you were searching google for "blue color schemes", would you be more likely to click on a link with your EXACT search phrase?