In honor of Pi-Day, the here is the French 3.14 Maritime Signal Flag. It is a union of the old French maritime signal flags for 3, 1, and 4. Note that the #4 flag has been turned 90° to keep colors sharp! As if the flag were hanged in hall.
Saturday, March 14, 2026
π-Day Flag for Retired Fench Signal Flags
In honor of Pi-Day, the here is the French 3.14 Maritime Signal Flag. It is a union of the old French maritime signal flags for 3, 1, and 4. Note that the #4 flag has been turned 90° to keep colors sharp! As if the flag were hanged in hall.
RGB Color Code Flag for π: 3,14,159
With the RGB color code for colours, the color of Pi is coded to a bluish color with 3 for the Red Channel, 14 on the Green Channel, and 159 on the Blue channel. (3, 14, 159) Remember 255 is the Max!
Enjoy this Pi-Day Flag! 3.14159
Another π-Day Ancient Maritime Flag, thanks to James Elford in the early 1800s
Confederate π-Day Flag
Using the old signal flags of the Confederacy, we can make a Pi-Day flag. Enjoy!
Ahoy! Captain Marryat's π-Day flag!
It's only highly appropriate the Captain Marryat's original code for number's get a Pi-Day Flag! Saluting the original sailor form the UK. This flag is a combo for Marryat's #3, #1, and #4 flags all combined into one to represent π-Day today 2026!
You can see the original numbers below in from the 10th version of his original concept work.
COVER OF THE NAVAL BOOK 
PLATE 1 from the book
The Original #1 from Greenwich Museum.
Pi-Day Twin Flags: Howe's Pi-Day & Popham's Pi-Day Flag
Of the original signal flags to sail upon the high seas, we have two very similar π-Day Flags based upon the signal flags of Lord Howe & Lord Popham.
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