The Trinity Vertical Blind is a made-to-measure range from 247 Blinds spanning 69 finishes from £15.85, with every variant clearly labelled as either blackout or fire-retardant blackout. That upfront opacity labelling is the range's most practical feature - you know exactly what you're ordering without having to cross-reference a separate spec sheet.

Who it suits

Vertical blinds suit wide openings: patio doors, conservatory windows, and large picture windows where the blind needs to slide along a track rather than roll up. Trinity works in any of those settings where you also want meaningful light control.

The blackout labelling makes this range a credible option for bedrooms with wide windows or patio-door-style openings - for example, a ground-floor bedroom in a modern house where the whole rear wall is glazed. It is worth noting that even a blackout fabric does not guarantee total darkness: light leaks around the edges of vanes and at the track ends, so combine with side channels or a face-fit installation for the best result. For children's bedrooms, confirm the cord or wand arrangement with the retailer; modern blinds are required to meet UK cord-safety regulations (BS EN 13120) and 247 Blinds should be able to specify the operating mechanism.

For living rooms and home offices the blackout vanes are equally usable - you simply rotate them partially open to admit diffused light while maintaining privacy, which is the standard vertical blind operating mode.

The colours

69 colours available

Standard
Blackout Fuschia from £15.85
Standard
Blackout Lavender from £15.85
Standard
Blackout Truffle from £15.85
Standard
Fr Blackout Alexandrite from £15.85
Standard
Fr Blackout Balance from £15.85
Standard
Fr Blackout Empress from £15.85
Standard
Fr Blackout Firefly from £15.85
Standard
Fr Blackout Kingfisher from £15.85
Standard
Fr Blackout Perdix from £15.85
Standard
Fr Blackout Pitch from £15.85
Standard
Fr Blackout Tranquil from £15.85
Standard
Fr Blackout Ursine from £15.85
Standard
Blackout Oatmeal from £15.85
Standard
Blackout Cosmic Black from £15.85
Standard
Blackout Baby Blue from £15.85
Standard
Fr Blackout Blue Depths from £15.85
Standard
Fr Blackout Blue Haze from £15.85
Standard
Blackout Oyster Grey from £15.85
Standard
Blackout Light Grey from £15.85
Standard
Blackout Platinum from £15.85
Standard
Blackout Soft Grey from £15.85
Standard
Fr Blackout Cashmere from £15.85
Standard
Fr Blackout Cosmic Grey from £15.85
Standard
Blackout Soft Pink from £15.85
Standard
Fr Blackout Purple from £15.85
Standard
Blackout Poppy Red from £15.85
Standard
Fr Blackout Milk White from £15.85
Standard
Fr Blackout Cardinal from £15.85
Standard
Fr Blackout Chickadee from £15.85
Standard
Fr Blackout Parakeet from £15.85
Standard
Blackout Fossil Grey from £15.85
Standard
Fr Blackout Deep Grey from £15.85
Standard
Fr Blackout Heron Grey from £15.85
Standard
Fr Blackout Seal Grey from £15.85
Standard
Blackout Daffodil Yellow from £15.85
Standard
Blackout Tropics from £15.85
Standard
Fr Blackout Aztec from £15.85
Standard
Fr Blackout Cerulean from £15.85
Standard
Fr Blackout Hestia from £15.85
Standard
Blackout Alabaster from £15.85
Standard
Blackout Delph Blue from £15.85
Standard
Blackout French Blue from £15.85
Standard
Blackout Prussian Blue from £15.85
Standard
Blackout Royal Blue from £15.85
Standard
Blackout Mayan Brown from £15.85
Standard
Blackout Soft Green from £15.85
Standard
Blackout Cotton White from £15.85
Standard
Blackout Off White from £15.85
Standard
Blackout Vanilla from £15.85
Standard
Fr Blackout Rice Paper from £15.85
Standard
Fr Blackout Silk White from £15.85

Seventeen of the 22 finishes are labelled simply "(Blackout)"; the remaining five carry "(Fr Blackout)" - fire-retardant blackout - in their names (Aztec, Cerulean, Hestia, Rice Paper, and Silk White). Fire-retardant fabrics are commonly specified for commercial environments and some rented or leasehold properties where building regulations or landlord requirements apply; for domestic use they work the same way as standard blackout, but confirm with 247 Blinds if a specific fire-rating certificate is needed.

The colour palette leans heavily neutral and blue. Whites and near-whites are well represented: Cotton White, Off White, Vanilla, Alabaster, Ivory, Rice Paper, and Silk White give several options in the palest register. Blues range from soft (French Blue, Delph Blue) through mid-tone (Cerulean, Royal Blue) to deep (Prussian Blue). Beyond that, the range offers Stone, Steel, Plum, Soft Green, Mayan Brown, Peony, Iron, and the patterned Tropics. The palette is broad enough to suit most interiors without pushing into specialist territory.

Price by your dimensions

Enter your window size. We round up to the next standard size, which matches how the retailer actually quotes you.

At a from-price of £15.85, Trinity sits in the mid-range for a vertical blind with confirmed blackout fabric - the opacity guarantee carries a modest premium over unspecified vertical fabrics. Pricing scales with your window's width and drop.

How it compares

The clearest comparison is with vertical blind ranges that do not specify fabric opacity. If you are choosing between a range that lists colours without stating opacity and Trinity with its per-vane blackout labels, Trinity removes the guesswork - that matters most for bedrooms and media rooms.

Against other blackout vertical options, the fire-retardant subset within the range adds flexibility for rented or commercial settings where a landlord or freeholder specifies FR-rated fabrics. If you need a wider colour palette with warmer tones - terracottas, rich greens, ochres - some other vertical ranges carry more variety in that direction; Trinity's palette concentrates on neutrals and blues. That is not a failing for most rooms, but it is worth checking the full colour list before committing.

One further consideration: vertical blinds are not inherently suited to bathrooms or kitchens unless the fabric or vane material is moisture-resistant or PVC. Blinds By Post does not specify moisture resistance for the Trinity fabrics at range level, so for rooms with steam or condensation, confirm suitability directly. For dry rooms - living rooms, bedrooms, home offices - this is not a concern. If thermal performance is a priority, no vertical blind addresses that well; a cellular or honeycomb blind is a different category of product built for insulation rather than light control.