Armenian indigo know-how and techniques date back to antiquity. At that time, however, there were only a few varieties of plants in Armenian soil that could produce the deep blue hue of indigo, including Isatis tinctoria. It wasn't until the Middle Ages and the development of the silk routes, on which Armenia held a crossroads position. From then on, the country benefited from the sharing of new knowledge and techniques, mostly from Asia, and was able to introduce new varieties with a deeper blue color, such as Indigofera tinctoria.

In order to maximize their content of Indican, the active ingredient that creates the blue, harvesting must take place between late summer and early autumn, when the plants reach maturity. After being crushed, the leaves were macerated in large vats of water, triggering an enzymatic process that releases the chemical compound responsible for the blue color. 24 hours later, the water turns yellow-green, a sign that the indican has begun its transformation into pigment: indoxyl is extracted, which must now be transformed into indigotine, the final state of the color. To do this, the mixture of leaves and water is beaten to expose it to oxygen, so that it can be filtered; the solid particles resulting from this process are the raw indigo pigments, which are then sun-dried and ground into powder form.

Used for the sublimation of fabrics and garments, as well as the famous Armenian carpets, indigo dyeing has stood the test of time, only to be gradually replaced by industrial techniques and synthetic molecules. Nevertheless, it has been one of the pillars of the reputation of Armenian know-how throughout the world, and a source of symbolism for the Armenian people, who saw in this color the symbolization of the divine and celestial.