>Heidegger and Matura are more cryptic unless you are a philosopher.
I think The Origin of the Work of Art by Heidegger is fairly readable. I'd also add one of Heidegger's classmate's, Walter Benjamin, whose early writing was directly about the experience of color. There's a book about it called Walter Benjamin, The Colour of Experience by Howard Caygill. Though its a bit difficult for the layman because it interprets Benjamin through his neokantian education (at the Marburg school, with Heidegger) and assumes a certain familiarity with Kant.
I think The Origin of the Work of Art by Heidegger is fairly readable. I'd also add one of Heidegger's classmate's, Walter Benjamin, whose early writing was directly about the experience of color. There's a book about it called Walter Benjamin, The Colour of Experience by Howard Caygill. Though its a bit difficult for the layman because it interprets Benjamin through his neokantian education (at the Marburg school, with Heidegger) and assumes a certain familiarity with Kant.