Principality of Sealand Flag

Signal, Sport and Symbolic Flags

The flag of the Principality of Sealand, a micronation on a former sea fort off the English coast, declared in 1967.

Hoist Ratio 2:3 Fly

Basic Flag Information

Flag Name	Principality of Sealand Flag
Category	Signal, Sport and Symbolic Flags
Adopted On	1967
Flag Proportion	2:3
Flag Shape	Rectangle
Number of Colors	3
Main Colors	Black, White, Red
Design Type	Diagonally divided field of black, white and red

Flag Color Information

Color	Appearance	HEX Code
Black		#000000
White		#FFFFFF
Red		#DA121A

Flag Design and Symbols

Black colour	Represents the upper section
White colour	Represents the diagonal band
Red colour	Represents the lower section
Diagonal division	A simple, distinctive design for one of the world’s best-known micronations

About the Principality of Sealand Flag

The flag of the Principality of Sealand, a micronation on a former sea fort off the English coast, declared in 1967.

WorldFlags.online keeps this design in the Signal, Sport and Symbolic Flags collection rather than presenting it as a current sovereign-state flag. That category determines how dates, status and reuse guidance should be read.

Design and construction

Diagonally divided field of black, white and red; recorded proportion 2:3.

Reference palette

The stored palette is Black (#000000), White (#FFFFFF) and Red (#DA121A). These values are reference values for the artwork in this library and should not be treated as a legal colour specification unless the issuing body publishes one.

Symbols and meaning

Diagonal division: A simple, distinctive design for one of the world’s best-known micronations.

Date and authorship

The record dates the design to 1967.

Why this record is separate from national flags

Historical, organisational, political, identity, religious, regional and signal flags can be important reference material without having the status of a present-day national flag. Keeping those categories separate makes the library clearer and reduces the risk of presenting a historical or protected emblem as a current national symbol.

Verification sources

Flags of the World — specialist flag reference index — Specialist vexillological reference

Facts about the Flag of Principality of Sealand Flag

Principality of Sealand Flag is filed under Signal, Sport and Symbolic Flags rather than the current national-flag index.
The recorded construction is diagonally divided field of black, white and red.
The reference proportion is 2:3.
The stored palette contains Black, White and Red.
The record dates this design to 1967.
Diagonal division: A simple, distinctive design for one of the world’s best-known micronations.
The flag of the Principality of Sealand, a micronation on a former sea fort off the English coast, declared in 1967.

Frequently asked questions about the Principality of Sealand Flag

What is the Principality of Sealand Flag?

The flag of the Principality of Sealand, a micronation on a former sea fort off the English coast, declared in 1967.

What type of flag is the Principality of Sealand Flag?

It is catalogued under Signal, Sport and Symbolic Flags rather than the current sovereign-state flag index.

What does the Principality of Sealand Flag look like?

Diagonally divided field of black, white and red, with a recorded proportion of 2:3.

What proportion is recorded for the Principality of Sealand Flag?

The reference proportion stored for this record is 2:3.

Which colours are recorded for the Principality of Sealand Flag?

The reference palette lists Black #000000, White #FFFFFF and Red #DA121A.

What do the symbols on the Principality of Sealand Flag mean?

Diagonal division — A simple, distinctive design for one of the world’s best-known micronations.

When is the Principality of Sealand Flag dated or adopted?

The record gives 1967.