color.nerd

Here's an attempt at two isoluminant hue circles in oils. The dark warm yellow is a shade too light, but otherwise I'm pleased with the effect.

An experiment: I mixed paint to try to find the lightness of 12 hues that would all translate to an equal "black" under a red filter. Almost nailed it!

Was drafting a script for a video on Mondrian, De Stijl, Ostwald and the Bauhaus... and it turned into a 1300 word essay. Oops.

Exploring mixing fluorescent colors with my daughter.

I used Bruce MacEvoy's plot of pigment hue/chroma in CIECAM02, narrowed to the pigments in my oil paint collection, to generate a voronoi diagram. Then I painted each cell with the pigment in question.

@meodai Will check this stuff out, thanks!

@color_nerd Did some color stuff you might like: farbvelo.elastiq.ch github.com/meodai/color-n… meodai.github.io/rampensau/ meodai.github.io/fettepalette/ etc... I could use some help from you on: words.github.io/color-descript…

@color_nerd oh a fellow color nerd

Top row: phthalo cyan to cadmium red. 2nd: cobalt green dark to cadmium red. 3rd: cobalt green dark to quinacridone red. 4th: manganese blue to quinacridone red.

If you'd like to see more work by Johonnot, look up Hammered & Hewn on the web, they have a fair sized collection. He has sadly become obscure, but could command the equivalent of $10,000 for a painting in his day.

This is a painting my Ralph Johonnot, circa 1910. A colleague of Arthur Wesley Dow and mentor of Rudy Schaeffer, Johonnot was pivotal in the transmission of science-based color theory in the Arts & Crafts movement.

@Coloria_net This is Charles Hayter's "A New Practical Treatise on the Three Primitive Colours" (1830). Can be found on Google Books. 😊

@color_nerd A little besides the point...: Can you tell me, which book this illustration is from? (I'm collecting and remaking old colour theory themed illustrations as my hobby 🙂 )

Still teaching that Red Yellow and Blue are the primary colors in 2022? That's equivalent to a chemistry teacher whipping out a table of hermetic symbols. A thread.

@ercchromotope @MaddieHewitson @RibeyrolCharlo1 @forarthistory Looking at the panel topics - what a great conference!

@MaddieHewitson, @RibeyrolCharlo1 and Matthew Winterbottom will be organising the panel on 'Victorian Colour Revolution: The Nineteenth-Century Chromatic Turn' at the Annual Conference of @forarthistory. You can submit a paper until 4 November bit.ly/3fWIMEh

And yet it was hugely influential. RYB is still the dominat model in fine art classes, even at the college level. So now, in 2022, we're faced with a choice: perpetuate pre-scientific color theory, and be foolish as a science teacher teaching alchemy, or GET WITH THE PROGRAM.

It included a lot of confusing "Laws of Contrast" that don't stand up to science, and that famous RYB color wheel, which ignores all the developments of color science since Maxwell...