The Flag of the Dominican Republic consists of a white cross which arms stretches out to the edges, and by this, dividing in four equal horizontal-rectangular sections, two ultramarine blue, and two vermillion red, alternating, arranged in such a way that the first horizontal-rectangular section, which is located at the upper portion, and nearest to the flagpole, is the ultramarine blue. The width:long ratio is 2:3; that is, that for each 2 inches (width), the flag must be 3 inches (long). The design of the Dominican Flag was conceived by Juan Pablo Duarte, who clearly defined symbolism of the flag at time of the Oath of the Trinitarian:
"On behalf of the Most Holy, Most Adorable, and Indivisible Trinity of the Omnipotent and Almighty God, I swear and take oath, and promise, by my honor and my conscience, in the hands of our President Juan Pablo Duarte, to collaborate not only with my person, my life, and with all properties that I possess, to the definite and final separation of the Haitian Government, and to establish a sovereign and independent Republic, set aside from any foreign domination, Republic which is to be referred to as Dominican Republic. WHICH FLAG WILL HAVE THREE COLORS: RED AND BLUE RECTANGLES, SEPARATED BY A WHITE CROSS, whilst and until Flag is made, we The Trinitarians will be recognized when voicing sacred words of our motto: "DIOS, PATRIA y LIBERTAD" (God, Country and Liberty).
"This, I promise before God and before the world. If I so do, may God protect me; and if not, may the world judge me, and my friends punish me for committing perjury; and of treason, if I sell this my belief".
The first Flag of the Dominican Republic was made by various ladies, amongst them: María Trinidad Sánchez, María de Jesús Pina, Isabel Sosa and Concepción Bona. The Flag of the Dominican Republic was raised for the first time on the Twenty-Seventh (27) days of the month of February, of the year Eighty-Forty Four (1844), which is the day that Dominicans celebrate their Independence.
Latter, on the Sixth (6th) days of the month of November, of the year Eighty-Forty Four (1844), the newly constituted Congress, which was homed in the city of San Cristóbal, promulgated the First Constitution of the Dominican Republic, in which the Dominican Flag was embraced as the symbol of our new Motherland, and enforcing a change on the positioning of a pair of horizontal-rectangular squares (Blue–Red / Red-Blue), which made our Flag to be more harmonious and one of the most beautiful flags of the world.
The use of the Flag of the Dominican Republic is essentially regulated by Law 360 of 1943, and as amended, and by Decrees on this issue and matter, which provides for the following:
The face side of the Flag of the Dominican Republic is that one in which the ultramarine blue section is at the left of the Observer.
The Flag of the Dominican Republic must never touch the floor.
The Flag of the Dominican Republic will be mounted and raised up the flagpole every working day, at all governmental offices, buildings and agencies, every morning, at sunrise, and will be dismounted and brought down the flagpole, every day, at sunset.
The Flag of the Dominican Republic must not be exhibited if in poor condition (should not be torn, broken, ragged, nor dirty).
It is the duty of every Dominican to exhibit the Flag of the Dominican Republic on days declared as National Holidays (i.e.: February 27, and August 16).
When the Flag of the Dominican Republic is to be exhibited and/or flown side by side to another flag, whilst in Dominican soil, the Flag of the Dominican Republic must be positioned at the Right side (Left of the Observer, when the Observer is positioned looking at the face side of the Flag).
When the Flag of the Dominican Republic is placed vertically, the ultramarine blue section, at the upper corner, which is attached to the thick border of the edge of the halyard, must be positioned to the Left side of the Observer.
When the Flag of the Dominican Republic is placed horizontally, over a wall, the Flag must be hung in such a way that the ultramarine blue section, which is attached to the right edge of the halyard, is positioned to the Left side of the Observer.