"The Goethe's speech" is a project in which the colors, blue and yellow take the leading role; as in Goethe's color theory.

This inventory shows 4 of the 8 natural colors that were used for the development of the main project; in this case the Blues.

We can see the color on different materials such as: Hanji paper, cotton paper, the variety of colors in Hanji paper threads and in cotton yarn.

The tonal variation can be obtained by the repetition of immersion in the color bath or by altering the pH of the bath.