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The Library
of Alexandria
Zur Farbenlehre, the cover of this edition

Zusammenfassung

Zusammenfassung von Zur Farbenlehre

8 Min. LesezeitHörfassung demnächst10 wichtige Punkte
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Für wen es gedacht ist

You will enjoy this if you love hands-on experiments, optics and the history of science, or if you paint, design, dye or photograph and want to understand colour by watching it.

Worum es in diesem Buch geht

Stand in a dim forge, fix your eyes on a glowing mass of iron, then turn toward an open coal shed. A large red image floats in the dark, and when your gaze moves to pale boards it shows half green. Goethe saw this himself and wrote it down.

Theory of Colours was published in 1810 by Johann Wolfgang von Goethe, the German poet and statesman. He wrote it because he believed Newton's account of light had left out how colours are actually seen. You get the teaching part in order: the eye, cloudy mediums, edges and prisms, the case against the seven colours, colour in nature, and what colour does to feeling and to painters.

In dieser Zusammenfassung

  1. 1Every careful look at nature already involves theoryFree
  2. 2The eye produces colours on its own
  3. 3Every colour calls up its opposite in the eye
  4. 4Coloured shadows show the eye and the light working together
  5. 5Unusual eyes show the same laws at work
  6. 6Cloudy mediums make yellow toward light and blue toward dark
  7. 7Colour at edges is the key to the prism
  8. 8Newton's seven colours are a castle that no longer stands
  9. 9Colour fixes itself in metals, plants, shells and feathers
  10. 10Colour acts on the mind and guides the painter

Punkt 1 von 10

Every careful look at nature already involves theory

Goethe opens by saying that colours are acts of light. He does not start with a definition of light, because a thing is best known through its effects. A person's character shows in the sum of that person's deeds. In the same way, a full record of what colour does tells you what colour is.

He makes a claim about the eye. It sees no form, only light, shade and colour, and from these three we build the visible world. Some people want facts with no theory attached. Goethe replies that every look leads to thought, and thought to combining things, so we are always theorising. The cure is to theorise knowingly, with calm self-possession and a touch of irony.

He sorts colours into three kinds. Physiological colours belong to the eye, chemical colours sit in bodies, and he joins them again in one series. Watch closely, and remember that watching already carries ideas.

That’s 1 of 10 key points.

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Go deeper: the whole of Zur Farbenlehre

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About this edition

Every format is free to start, and print and large print are at cost.

  • LengthAbout 97,000 words
  • Reading timeAbout 6 h 30 min
  • FormatseBook, large-print eBook, audiobook, 15-minute summary
  • LanguagesEnglish and 12 other languages

Questions about Zur Farbenlehre

What is Goethe's Theory of Colours about?

It is a study of how colours arise, based on experiments with the eye, shadows, prisms, thin films and pigments. Goethe argues that colour appears where light and darkness meet, and he applies the idea to art, dyeing and feeling.

Why did Goethe disagree with Newton?

Goethe thought Newton built his account on one narrow, complicated experiment and treated the result as simple. He held that light is not made of coloured rays and that colour comes from edges and cloudy mediums.

What are physiological, physical and chemical colours?

Physiological colours are made by the eye itself, such as after-images. Physical colours appear through clear or cloudy mediums, such as prisms. Chemical colours sit in bodies, such as pigments, metals and plants, and can last a very long time.

Is Goethe's Theory of Colours still scientifically accepted?

His account of the spectrum is not accepted by physicists. His observations on after-images, coloured shadows, contrast and the effects of colour remain valued, and they have been used by vision researchers, painters and designers.

Can I try the experiments in the book at home?

Yes, many need only simple things such as coloured paper, a candle, a glass prism or a window. Goethe urges readers to repeat each test themselves, and the book describes the steps plainly enough to follow.

Cite this edition

Goethe, Johann Wolfgang von. Goethe's Theory of Colours. Library of Alexandria, 2026, libraryofalexandria.com/products/goethes-theory-of-colours.