Official state symbol Delaware State Flag Adopted 1913 Standardized 1954

Delaware State Flag

Delaware's flag puts December 7, 1787 below the diamond — the day Delaware ratified the Constitution, 5 days before any other state. What the colors, diamond, and coat of arms actually mean.

Delaware State Flag

Delaware State Flag

Official State Flag of Delaware

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Overview
Delaware's state flag carries a date: December 7, 1787. That is when Delaware ratified the United States Constitution — five days before Pennsylvania, making Delaware the first state in the Union. The flag, adopted on July 24, 1913, places that date in white lettering below a buff-colored diamond on a field of colonial blue. Inside the diamond is the state coat of arms, adopted on January 17, 1777, during the Revolutionary War itself. The colonial blue and buff colors were not chosen by a design committee. They trace to the uniform worn by General George Washington — a connection that links Delaware's flag directly to the Continental Army.
Adopted
July 24, 1913
Color standards set
1954 — National Bureau of Standards colorimetric testing
Date on flag
December 7, 1787 — Constitution ratification
Ratification position
First state — 5 days before Pennsylvania
Color origin
George Washington's Continental Army uniform (blue coat, buff facing)
Coat of arms adopted
January 17, 1777 — during the Revolutionary War
Diamond meaning
Thomas Jefferson's 'Diamond State' — small but strategically valuable
Buff vs. gold
1946 — Governor Bacon gifted Denmark a variant with gold diamond instead of buff
NAVA design ranking
52nd among North American flags (2001)
Symbolic Meaning
Delaware's flag carries a specific date — December 7, 1787 — as a central design element. That date marks the five-day window when Delaware was the only state in the Union. The colors trace to George Washington's Continental Army uniform, not to any design committee's deliberate choice.

How Delaware Got Its State Flag

Delaware's Civil War military regiments carried flags with the state coat of arms on a blue field — a pattern that pre-dated any official state flag law. In 1910, the Daughters of the American Revolution presented a flag to the USS Delaware battleship bearing the coat of arms on a blue field, approximately four by five feet. Delaware still had no official flag statute at the time.

A commission designed the current flag, and the General Assembly adopted it on July 24, 1913. The design codified what had already been in informal use: colonial blue field, buff diamond, coat of arms inside, ratification date below. This is the only official state flag Delaware has ever had.

Color specifications were not formally determined until 1954, when the National Bureau of Standards conducted colorimetric testing. The results — Munsell and Pantone values for each element — were filed with the Delaware Public Archives in Dover. Delaware's color documentation is among the most precisely defined of any state flag.

What Delaware's Flag Actually Says

The date December 7, 1787 is on the flag because Delaware used those five days. Delaware's ratification convention met, voted unanimously, and adjourned in a single day. Pennsylvania ratified five days later on December 12. No other state can claim the first ratification date, which is why Delaware put the specific date on its flag rather than a general reference to the Constitution.

The colors trace to George Washington. Colonial blue and buff — the flag's two primary colors — match the uniform Washington wore as commander of the Continental Army. Delaware chose those colors for its coat of arms in 1777, while Washington was still in command, and they carried forward into the 1913 flag without revision. The connection is to the war, not to the landscape or the sea.

Thomas Jefferson gave Delaware the Diamond State label, comparing it to a diamond: small but strategically placed between larger states, valuable out of proportion to its size. The buff diamond on the flag takes its shape from that comparison and its color from the buff facing on Washington's uniform — two different historical references converging in the same design element.

Diamond, Coat of Arms, Date — What Each Means

Buff Diamond
Symbol 01

Buff Diamond

A buff-colored diamond sits centered on the colonial blue field. The shape references Thomas Jefferson's description of Delaware as a diamond among states — small but strategically valuable. The buff color matches the facing on Washington's Continental Army uniform.

The state coat of arms appears inside the diamond. The ratification date appears directly below. The diamond frame places Delaware's founding-era symbols at the visual center of the flag.

Coat of Arms
Symbol 02

Coat of Arms

The coat of arms was adopted on January 17, 1777 — during the Revolutionary War, before the Constitution existed. A shield shows horizontal orange, blue, and white stripes bearing a wheat sheaf, an ear of corn, and an ox. A farmer with a hilling hoe stands to the left; a soldier with a rifle stands to the right. A sailing ship appears above the shield.

The wheat, corn, and ox reflect Delaware's agricultural economy. The ship represents shipbuilding and coastal trade on the Delaware River. The farmer and soldier represent the civilian and military foundations of the state. The motto Liberty and Independence runs on a banner below the shield.

December 7, 1787
Symbol 03

December 7, 1787

The date December 7, 1787 appears in white lettering below the buff diamond. It marks the day Delaware ratified the United States Constitution — unanimously, in a single day of deliberation.

No other state ratified before Delaware. Pennsylvania followed on December 12, New Jersey on December 18. Delaware is the only state to put its specific ratification date on the flag as a founding claim.

Liberty and Independence
Symbol 04

Liberty and Independence

The motto Liberty and Independence runs on a banner below the coat of arms shield. It is Delaware's state motto and appears in the state song, Our Delaware.

The phrase dates to Delaware's 1777 coat of arms — adopted during the Revolutionary War, 10 years before the Constitution Delaware would be first to ratify.

Why Are Delaware's Flag Colors Colonial Blue and Buff?

Both of Delaware's primary flag colors trace to George Washington's Continental Army uniform. Colonial blue was the coat color; buff was the facing color. Delaware adopted these shades for its coat of arms in 1777, when Washington was still in command, and the 1913 flag carried them forward unchanged.

Exact values were not established until 1954. The National Bureau of Standards used colorimetric spectrophotometry to define the shades, producing Munsell and Pantone specifications filed with the Delaware Public Archives. Delaware's color system is more technically detailed than most states, which typically rely on cable numbers or informal paint references. The full coat of arms uses twelve additional colors for the shield, figures, and decorative elements, all specified.

Quick Facts

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Question 1

Quick Answers

What does the date on Delaware's flag mean?
The date December 7, 1787 marks when Delaware ratified the United States Constitution — unanimously, in a single day. Delaware was the first state to ratify, five days ahead of Pennsylvania. No other state ratified before Delaware, which is why the date appears on the flag as a founding claim.
Why are Delaware's flag colors colonial blue and buff?
Colonial blue and buff trace to George Washington's Continental Army uniform — blue was the coat color, buff was the facing color. Delaware adopted these colors for its coat of arms in 1777, during the Revolutionary War. They carried forward unchanged into the 1913 state flag.
What does the diamond on Delaware's flag represent?
The diamond references Thomas Jefferson's description of Delaware as small but strategically valuable — like a diamond. The buff color matches the facing on Washington's Continental Army uniform. The state coat of arms appears inside the diamond, with the ratification date directly below.
When was Delaware's state flag officially adopted?
Delaware adopted its current state flag on July 24, 1913. The design formalized a coat of arms that had existed since 1777. Exact color specifications were not established until 1954, when the National Bureau of Standards defined them using colorimetric testing.
What is on Delaware's coat of arms?
Delaware's coat of arms shows a shield with a wheat sheaf, ear of corn, and ox on striped bands. A farmer with a hilling hoe stands to the left; a soldier with a rifle stands to the right. A sailing ship appears above. The motto Liberty and Independence runs on a banner below. The coat of arms was adopted January 17, 1777.

Sources

Information is cross-referenced with official state archives.
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