how calibrated is your monitor
Find a Post by RobertB
That is a Slate Blue Avatar
It appears lots darker than The (forum) default blue of the Quick Reply header bar, and lighter than my PEz, on my monitor

I would describe the color as a dark blue with a Grey cast (I wonder why they call it Slate Blue? Hmmm).
BTW, your two choices, were the same as mine. Blue won by a hair.