How to Pick Colours That Work Well Together
You've found your yarn matches but now you're staring at three or four colours side by side, trying to decide if they actually belong in the same project or if you're about to spend forty hours on something that looks off. Good news: there are a handful of reliable tricks for picking colours that colour theorists and designers have used for centuries, and they translate really well to yarn.
The grayscale test
Here's a simple one you can do with almost any photo editing app or even your phone: turn your colour photo (or your planned palette) black and white.
If the colours are genuinely distinct from each other, they'll still read as clearly different shades of gray once the colour is removed. If two colours turn into roughly the same gray, it means they're matched in value (lightness/darkness), even if the hues look totally different in colour. Matched values tend to visually "fight" each other or blur together from a distance, especially in a project with a lot of surface area like a sweater or blanket, because your eye relies on value contrast to tell shapes apart just as much as it relies on colour.
This is a favorite trick of illustrators and painters for a reason: it strips colour out of the equation and shows you the actual structural contrast in your palette.
Complementary colours
Complementary colours sit directly opposite each other on the colour wheel: red and green, blue and orange, yellow and purple. Pairing complements creates strong, vibrant contrast, which is why it's such a popular choice for anything meant to pop, like a bold cosplay accent or a statement piece.
The trade-off: pure complementary pairs at full saturation can be a lot. Many crafters soften the effect by using a muted or deeper version of one colour rather than two colours at full intensity.
Analogous colours
Analogous colours sit next to each other on the wheel: think blue, blue-green, and green, or red, red-orange, and orange. This creates a harmonious, low-contrast palette that feels cohesive and calm rather than punchy. It's a great choice for gradient or ombré-style projects, or any piece where you want colours to blend rather than compete.
Triadic colours
Pick three colours evenly spaced around the colour wheel, like red, yellow, and blue, or orange, green, and purple. Triadic palettes give you variety and vibrancy while still feeling balanced, because the colours are equidistant rather than randomly chosen. This works well for multi-colour projects like colourwork or stripes where you want visual interest without total chaos.
Split-complementary colours
A gentler cousin of the complementary pair: instead of using a colour's exact opposite, you use the two colours on either side of its opposite. So instead of blue + orange, you'd use blue + yellow-orange + red-orange. You still get strong contrast, but it's a little less intense and easier to balance across a larger project.
Monochromatic palettes
Different shades, tints, and tones of a single colour. This is a low-risk, high-payoff option that is almost impossible to get "wrong," and it reads as intentional and polished. It's especially useful when you're trying to add depth and dimension to a project without introducing an entirely new hue.
A few practical tips for yarn specifically
- Check your palette in different lighting. Yarn colours that look harmonious under warm indoor light can shift under daylight or photography lighting, which is important if your project needs to photograph well.
- Look at proportion, not just hue. Even a "clashing" colour pair can work beautifully if one colour dominates and the other appears only as a small accent. Colour harmony is as much about how much of each colour you use as which colours you pick.
- Texture changes how colour reads. A fuzzy mohair and a smooth cotton in the same colour family can look surprisingly different once knitted or crocheted up, since fiber texture affects how light reflects off the colour.
- When in doubt, test small. Crochet or knit a small swatch with your chosen colours together before committing a whole project. Palettes that look fine as skeins side by side don't always translate the same way once they're worked up in pattern or stitch texture.
Bringing it back to matching
Once you've settled on a palette using any of the approaches above, you can use YarnPalette's colour picker to find the closest real yarn match for each shade, so the harmony you planned on-screen translates accurately into yarn in your hands.