166
Blues family
Need details on Cosmo 166? This medium-dark, moderately saturated blue hand-dyed shade is hex #365186, RGB 54, 81, 134. Cross-brand equivalents in Weeks Dye Works, Gentle Art Sampler, and Valdani are listed below — ranked by perceptual similarity — alongside 8 nearby Cosmo shades and color-theory harmony pairings.
Brand Equivalents for Cosmo 166
Top 5 closest matches in each brand, ranked by visual color similarity. How matching works
DMC
Anchor
Madeira
J&P Coates
Sullivans
Classic Colorworks
Weeks Dye Works
Gentle Art Sampler
Valdani
Crescent Colours
Similar Cosmo Colors to 166
Closest Cosmo threads by perceptual color distance, sorted from most to least similar.
Working with Cosmo 166
It has moderate contrast on both light and dark fabric — usable on either, but test a few stitches on your chosen ground first.
Cosmo 166 sits a hair from Cosmo 254 (ΔE 2.82) — close enough to blend a strand of each for a smooth gradient or to swap one for the other in a pinch.
Color Harmonies for Cosmo 166
Cosmo threads that pair well with 166, based on color theory harmony rules in CIELAB color space.
Blues Family
Cosmo 166 in context with nearby shades from the blues color family.
About Cosmo 166
Meet Cosmo 166 — a moderately saturated, medium-dark hand-dyed thread in the blues family with sky blue tones. Stitchers describe its character as rich and grounded, perfect for forget-me-nots and bluebird motifs. It blends comfortably into projects centered on whale designs and sapphire accents.
Frequently Asked Questions
Cosmo 166 — what color is it?
Cosmo 166 is a medium-dark blue thread (hex #365186, RGB 54, 81, 134). It shows up most in water and denim textures.
What is the DMC equivalent of Cosmo 166?
The closest DMC match for Cosmo 166 is DMC 3807 (Cornflower Blue) with a 81% match based on visual color similarity. Other near matches include DMC 825 (Blue dark, 79%) and DMC 312 (Navy Blue light, 72%).
Which Cosmo threads are close to 166?
The closest Cosmo threads to 166 are 254 (ΔE 2.82), 2214 (ΔE 4.03), and 167 (ΔE 5.09). These are useful substitutes when 166 is unavailable or for building gradients.
What is Cosmo 166 good for?
Cosmo 166 is commonly used in cross-stitch projects featuring water, denim textures, cool-toned backgrounds, nautical themes. Its medium-dark tone works well for standalone motifs and as part of larger palettes. This page includes color harmonies and similar shades to pair with 166.
What fabric color works best with Cosmo 166?
It has moderate contrast on both light and dark fabric — usable on either, but test a few stitches on your chosen ground first. For reference, 166 has a contrast ratio of about 7.8:1 on white fabric and 2.7:1 on black. As a cool shade, its cool cast recedes visually — useful for backgrounds, shadows, water and sky, and calm, restful palettes.