Before I went on a cruise across the North Pacific Ocean, I had never seen water this blue.

I don’t think there’s a better illustration of the cobalt blue that Terri asked for, do you?

What about the evening sky, just outside my front door?  Looks cobalt to me.

Cobalt blue flowers, in a pot in Leavenworth, Washington.

Here’s the Link to Terri’s original post for this week.