[roamer_1]

Can you tell me what God says the color blue is to represent?

[Arthur McGowan]

Why would one expect God to have said anything about it?

[Uri’el-2012]

Can you tell me what God says the color blue is to represent?

For the Roman church, I have no idea.

For G-d's Ekklesia, the color blue is YHvH' Glory.

In the Torah, the Israelites were commanded to put fringes, tzitzit,
on the corners of their garments, and to weave within these fringes
a “twisted thread of blue (tekhelet)

Also See here

The blue was in the Hem of His Garment when
He healed the the woman with the issue of blood.
See Mark 5:31 & Luke 8:45

shalom b'SHEM Yah'shua HaMashiach