Lay out the whole palette before the first stroke
Pre-mixed his palette into graded rows of tones before painting, building a single hue in several states, like violet three ways: Prussian blue and vermilion (most intense), cobalt and vermilion (mid), Cassel earth and vermilion (most neutralised).
Why it matters · With the tones already mixed and ranged by temperature, painting becomes choosing instead of mixing. You can move a form from warm light into cool shadow without breaking rhythm to chase a colour, and without muddying it on the palette mid-stroke.
Attentive Equations, reconstruction of Delacroix's palette for the Apollo-ceiling Nymph from his colour notes — A reconstruction of one figure, not a verbatim primary palette list.
Slash a diagonal to set the rhythm
Rejected the careful squared-up grid of the Neoclassicists. He often opened a canvas by slashing a single dynamic diagonal in charcoal to fix the backbone and momentum of the composition, then blocked the big masses in unblended complementary colour, red set straight against green.
Why it matters · A grid gives you accuracy; a diagonal gives you motion. Starting from the line of action bakes energy into the picture from the first mark, where Ingres's grid bakes in stillness. The opening gesture decides what the whole painting will feel like.
Technical analysis of Delacroix's compositional method
Weave half-tones from juxtaposed strokes (flochetage)
Instead of laying a pure colour flat in its place, he interlaced small hatched strokes of pure contrasting tones that mix optically, in the eye, into a vibrating half-tone. His friend Villot compared the brush to a weaver's shuttle.
Why it matters · A half-tone mixed on the palette goes dead; the same half-tone made by juxtaposed pure strokes stays bright, because the eye does the blending and the colours keep their charge. This is optical mixing a generation before the Impressionists made it a programme.
Frédéric Villot, contemporary description of flochetage
Keep the shadows coloured, never black
Treated shadow as coloured reflected light rather than an absence of colour, using complementaries, a principle he sharpened in conversation with the chemist Michel-Eugène Chevreul, who gave him the law of the simultaneous contrast of colours.
Why it matters · Black shadows kill a painting and flatten the light. Coloured shadows hold the light and tie the picture together. He warned that a canvas almost always looks greyer than it is, so the painter has to over-state the colour to win it back.
Delacroix, Journal; Louvre, "Delacroix and colour" (on Chevreul and simultaneous contrast)
Pose the models for the camera
Embraced the new medium his rival rejected: in 1853 and 1854 he had the photographer Eugène Durieu shoot calotypes of nude models that he posed himself, and worked directly from the prints, finding the calotype's soft grain more useful than a hard, sharp image.
Why it matters · A photograph holds a pose no model can hold, and holds it for as long as the painter needs. Delacroix treated the camera as a tool for study, not a threat to art, which is exactly the line Ingres refused to cross. He said the photographs taught him more than the inventions of writers.
Delacroix, Journal (October 1855); Eugène Durieu, album of calotypes (1853-54)
Bank the colour in writing, in the field
On the 1832 Morocco trip he filled seven sketchbooks with rapid drawings carrying written colour annotations ("red," "green," "blue") so he could reconstruct the exact colour later, often sketching surreptitiously where figurative depiction was frowned on.
Why it matters · Memory lies about colour; a written note does not. The annotations let him rebuild the specific light of Morocco in a Paris studio years later, accurately, and fed his subjects for the rest of his life. The sketch is a colour document, not just a shape.
Delacroix, Moroccan sketchbooks (1832 Mornay mission); Morgan Library Moroccan collection notes
Paint fast enough to catch a falling man
Prized speed as proof of competence: if you cannot sketch a man falling from a fifth-floor window before he hits the ground, he said, you will never produce monumental work.
Why it matters · Monumental work needs the whole image grasped at once and committed quickly, before second-guessing flattens it. The speed is a competence test, not bravado. The hand has to be fast enough to keep up with the eye.
Delacroix, Journal
Choose the sketch, then trace it into harmony
Generated many free sketches, picked the one that held the right elements, then laid tracing paper over it and reworked the figure into harmony before transferring it to the canvas.
Why it matters · The first sketch usually has the life and the wrong proportion. Tracing lets him fix the structure on a second pass without losing the spark of the first. Selection and refinement are kept as separate acts, so neither kills the other.
Delacroix, Journal; standard accounts of his preparatory method
Run a mural like a workshop
On the Saint-Sulpice campaign (1857-1861) he drew the composition onto the wall as finished as he could get it, his chief assistant Pierre Andrieu coloured the forms in, and he came back over the top retouching with speed; the medium was oil-and-wax over stone waterproofed with up to thirteen layers of wax, resin and oil.
Why it matters · Scale is a logistics problem. The master keeps the two things only he can do (the design and the final touch) and delegates the fill. The oil-and-wax medium is a practical choice: it resists the damp that destroys wall paintings.
Saint-Sulpice mural literature (Smarthistory; The Murals of Eugène Delacroix at Saint-Sulpice)