Start with Value, Not Colour

Most muddy cloth is a value problem, not a colour problem. Two yarns can sit on opposite sides of the colour wheel and still blend into an indistinct soup if they are the same lightness. Before you fall in love with a combination, check its values. Lay the hanks side by side on a windowsill, photograph them in black and white, and look at what is left. If the yarns merge into one grey mass, they will merge in the cloth, however different they look in the shop.

Aim for at least three clear steps of value across a project: a light, a mid and a dark. A two-yarn scarf with a three-step gap between them will show pattern crisply from across the room; a one-step gap gives a soft, hazy blend that can be lovely but needs to be chosen deliberately. Keep a simple value card of ten grey squares from white to black and hold each yarn against it. It takes thirty seconds and saves metres of warp.

Pick a Family, Then Add One Disruptor

Harmony comes from sharing something. Yarns that share a hue family (blues from woad to teal), a saturation level (all soft and chalky), or a value (all deep and smoky) will almost always sit together comfortably. The safest route for a first grown-up palette is analogous: three or four hues that are neighbours on the wheel, held together by a common undertone. Undertone matters more than hue in British wool. Many naturally coloured fleeces lean grey-blue or yellow-brown, and mixing the two can turn a palette dull.

Then add one disruptor, and only one. It might be a single complementary hue, a much darker shade, or a small amount of saturated dyed yarn against natural fleece shades.

• Analogous plus accent: soft grey-green, oatmeal and olive, with a thin line of madder red.
• Neutral plus one jewel: Shetland moorit and fawn, with intermittent shots of indigo blue.
• Two tones with a value jump: pale Wensleydale against near-black Jacob, woven in undulating twill.

Proportion: Decide Who Gets the Most Cloth

Colour in woven cloth is nearly always about proportion, and the proportion is decided by the cloth, not by the palette. A balanced plain weave with a pale warp and a dark weft reads as mid-grey from across the room and as a speckle close up, so the weft often carries more visual weight than you expect. In a warp-faced band or a rug, the warp is the scheme and the weft is a footnote. In weft-faced tapestry the opposite is true.

A workable habit is to allot roughly sixty per cent to a dominant, thirty to a supporting tone and ten to the accent, then adjust by eye. If the accent is taking over, do not abandon it: weave it as one pick in eight rather than every other pick, or save it for a single band at the hem. Small areas of high contrast read louder than large ones, so a single dark selvedge stripe can frame a whole piece.

Let the Structure Mix the Colour

The weave itself is a colour mixer. At a close sett in plain weave, adjacent ends and picks blur into one another and you get optical blending, the trick behind pointillist-looking cloth woven from two solid yarns. Open the sett and the same yarns separate into distinct dots. Twill and satin float yarn over yarn, so one colour advances at the expense of the other, and a two-colour twill can flip its apparent dominant when you reverse the threading or treadling.

This is why yarn wraps on a card can lie to you. They show the yarns touching side by side, not interlacing. Wind the actual warp at the actual sett (count how many wraps fit into 25mm and compare with your intended ends per inch or per centimetre), then weave at least 15cm with each weft candidate. Log cabin, shadow weave and double cloth all change the rules again, so sample them specifically if that is where you are heading.

Keep a Sample Record

Every serious weaver I know has a gamp, that Welsh-style sample blanket, or a fat notebook of woven squares, and the ones that get used are the ones with notes. Record the yarn, its source and count, the sett, the draft, and the wet-finished result. Washed and pressed cloth rarely matches the loom state, and wool fulls, so a sample that looked crisp on the beam may soften into something quite different after a gentle hand-wash.

Do the same with dyeing. A dyepot of madder, weld or woad gives you a family of tones that share an undertone almost automatically, because they came from the same bath and the same water. Keep a skein of each shade with its recipe alongside a note of the fibre, since Bluefaced Leicester and Wensleydale take colour differently.

Above all, limit the palette. Four yarns, well chosen and carefully proportioned, will make more convincing cloth than twelve competing hanks. Keep those four in the studio for a season and you will learn them properly, and start to see what they can do.