555
Blues family
Cosmo 555 is a medium, muted blue shade with hex code #564E88 and RGB values 86, 78, 136. Below you'll find the closest Valdani, Crescent Colours, and DMC equivalents — ranked by visual color similarity — plus 8 similar Cosmo shades and color harmony pairings.
Brand Equivalents for Cosmo 555
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 555
Closest Cosmo threads by perceptual color distance, sorted from most to least similar.
Working with Cosmo 555
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 555
Cosmo threads that pair well with 555, based on color theory harmony rules in CIELAB color space.
Blues Family
Cosmo 555 in context with nearby shades from the blues color family.
About Cosmo 555
A muted, medium member of the blues family, Cosmo 555 is a hand-dyed floss with deep blue tones. Its warm and grounded presence shines in whale designs and sapphire accents alike. Pull this thread for porcelain patterns or hydrangea blooms when you need a dependable shade.
Frequently Asked Questions
What does Cosmo 555 look like?
Cosmo 555 is a medium shade in the blues family with hex #564E88 and RGB 86, 78, 136. Stitchers reach for it in projects featuring cool-toned backgrounds and nautical themes.
Which DMC thread matches Cosmo 555?
The closest DMC match for Cosmo 555 is DMC 32 (Dark Blueberry) with a 88% match based on visual color similarity. Other near matches include DMC 3746 (Blue Violet dark, 76%) and DMC 3807 (Cornflower Blue, 72%).
What Cosmo colors are similar to 555?
The closest Cosmo threads to 555 are 176 (ΔE 4.82), 175 (ΔE 5.31), and 664A (ΔE 5.52). These are useful substitutes when 555 is unavailable or for building gradients.
When should I use Cosmo 555?
Reach for Cosmo 555 when your project calls for cool-toned backgrounds, nautical themes, winter scenes, forget-me-nots. Its medium character carries both small accents and wider palette work; the harmony picks on this page show natural companions to 555.
What fabric color works best with Cosmo 555?
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, 555 has a contrast ratio of about 7.4:1 on white fabric and 2.8:1 on black. As a soft cool shade, its cool cast recedes visually — useful for backgrounds, shadows, water and sky, and calm, restful palettes.