556
Blues family
Looking up Cosmo 556? It's a medium-dark blue shade (#403B71 / RGB 64, 59, 113). Scroll down for Crescent Colours, DMC, and Anchor equivalents ranked by visual similarity, plus 8 close Cosmo alternatives and curated color harmonies.
Brand Equivalents for Cosmo 556
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 556
Closest Cosmo threads by perceptual color distance, sorted from most to least similar.
Working with Cosmo 556
It has moderate contrast on both light and dark fabric — usable on either, but test a few stitches on your chosen ground first.
Color Harmonies for Cosmo 556
Cosmo threads that pair well with 556, based on color theory harmony rules in CIELAB color space.
Blues Family
Cosmo 556 in context with nearby shades from the blues color family.
About Cosmo 556
Cosmo 556 sits in the blues family as a medium-dark, moderately saturated shade with deep blue tones. Expect a rich and grounded look that suits sapphire accents, porcelain patterns, and similar motifs. Cross stitch enthusiasts often reach for this thread when stitching hydrangea blooms or skies.
Frequently Asked Questions
Cosmo 556 — what color is it?
Cosmo 556 is a medium-dark blue thread (hex #403B71, RGB 64, 59, 113). It shows up most in nautical themes and winter scenes.
What is the DMC equivalent of Cosmo 556?
The closest DMC match for Cosmo 556 is DMC 158 (Cornflower Blue medium) with a 80% match based on visual color similarity. Other near matches include DMC 792 (Cornflower Blue dark, 79%) and DMC 791 (Cornflower Blue very dark, 72%).
Which Cosmo threads are close to 556?
The closest Cosmo threads to 556 are 4792 (ΔE 3.49), 665 (ΔE 4.01), and 2167 (ΔE 4.5). These are useful substitutes when 556 is unavailable or for building gradients.
What is Cosmo 556 good for?
Cosmo 556 is commonly used in cross-stitch projects featuring nautical themes, winter scenes, forget-me-nots, bluebird motifs. 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 556.
What fabric color works best with Cosmo 556?
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, 556 has a contrast ratio of about 10.1:1 on white fabric and 2.1:1 on black. As a cool shade, its cool cast recedes visually — useful for backgrounds, shadows, water and sky, and calm, restful palettes.