King Cole Firefly Aran — Harlequin Beetle (6577)

The monochrome. Harlequin Beetle is black through pewter to soft silver-grey, with the faintest warm mauve cast where the light hits — no bright colour at all, just tone and shine. It's the most sophisticated shade in the range and the one that reads as expensive.

Because there's no colour change to compete with, this is the shade to choose when you want the stitch pattern to be the star. Cables, lace panels and textured yokes all show up clearly, and the shimmer traces the fabric's surface rather than fighting it. Also the safest choice for a gift knit when you don't know the recipient's palette.

Palette: black, charcoal, pewter, silver-grey, soft mauve

Perfect for: cabled jumpers, lace panels, evening wear, gift knits, men's knits

Brand: King Cole

Yarn Name: Firefly Aran

Yarn Code: 6577

Colour Name: Harlequin Beetle

Yarn Weight: Aran (worsted / 10-ply)

Ball Weight: 100g

Length: 200m / 219yds

Hook Size: 5mm–5.5mm

Blend: 65% Polyester, 35% Acrylic

Hashtag: #kingColeFirefly

Firefly Aran isn't a glitter yarn — there's no metallic thread and no scratch. The shimmer is built into the fibre itself, giving knitted and crocheted fabric a soft halo and a light-catching glow that shifts as you move. Buy your full quantity in one go where you can, and join new balls at a matching point in the colour run to keep the transitions seamless.