Superior Threads So Fine! 50wt Polyester Thread 3280yd - Midnight Harbor 436

Superior Threads So Fine! #50 Midnight Harbor 436 brings deep blue character to quilting and sewing projects that call for a composed, sophisticated finish. Designed for quilters, garment makers, and everyday sewists, this fine-weight polyester thread is a natural fit for nautical patterns, evening-sky palettes, dark blue patchwork, and contemporary designs. Its rich color can blend into navy fabrics or create subtle definition across lighter blue and neutral backgrounds.

The 3,280-yard cone provides ample thread for large quilts, extended sewing sessions, garment construction, and bobbin use. Made from 3-ply filament polyester, So Fine! #50 features a matte finish and ultra-low-lint performance, making it a practical choice for projects that benefit from smooth stitching and understated surface sheen.

Why choose Superior Threads So Fine! #50?

• Fine 50wt construction: Well suited to detailed quilting, garment sewing, and projects that call for a less prominent stitch line.

• Ultra-low-lint performance: Helps minimize lint buildup during sewing, while routine machine cleaning remains important.

• Understated matte finish: Keeps the stitch appearance subtle without a pronounced glossy sheen.

• Consistent sewing performance: Designed for smooth thread delivery when machine tension and setup are appropriate.

• Generous 3,280-yard cone: Provides extended thread capacity for larger quilts and regular sewing projects.

Where Midnight Harbor 436 works especially well

Midnight Harbor is a versatile choice for projects that feature deep blues or need a darker thread to define quilting patterns.

• Nautical and coastal quilts featuring navy, ocean blue, and white.

• Night-sky, geometric, and modern quilts with dark blue accents.

• Longarm and domestic machine quilting across navy and medium-blue fabrics.

• Garment construction and topstitching on denim and other compatible blue fabrics.

• Bag making, accessories, and bobbin use when a fine polyester thread suits the application.

Color-planning ideas for Midnight Harbor

Pair Midnight Harbor with navy, denim blue, slate gray, white, or cream for a balanced palette. For tonal quilting, use it across darker blue fabrics to keep stitches integrated into the design. On pale fabrics, the deeper shade creates more visible stitch definition and can emphasize quilting motifs.

For complementary options, consider Superior Threads So Fine! #50 Silver for lighter, cooler contrast or Superior Threads So Fine! #50 Charcoal for a neutral dark accent. These shades can help transition between blue sections and gray or monochromatic fabrics within the same project.

So Fine! #50 Midnight Harbor 436 technical details

• Brand: Superior Threads

• Thread line: So Fine! #50

• Color: Midnight Harbor

• Color number / SKU: 436

• Fiber: 3-ply filament polyester

• Thread size: 50 wt; 30 Tex

• Cone length: 3,280 yards

• Finish: Matte

• Primary uses: Quilting, bobbins, garment construction, and general sewing

Color-matching note: Deep blue shades can look different depending on screen settings, photography, and lighting. If an exact match is important, compare Midnight Harbor 436 with your fabric or a physical thread sample before starting your project.

Shop More Thread at ThreadWorks

Bring depth and definition to your next sewing project with Superior Threads So Fine! #50. Explore more blue thread shades, find coordinating neutrals, or shop all sewing thread at ThreadWorks.