121
Greens family
Looking up Cosmo 121? It's a dark green shade (#254628 / RGB 37, 70, 40). Scroll down for Crescent Colors, DMC, and Anchor equivalents ranked by visual similarity, plus 8 close Cosmo alternatives and curated color harmonies.
Brand Equivalents for Cosmo 121
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 Colors
Similar Cosmo Colors to 121
Closest Cosmo threads by perceptual color distance, sorted from most to least similar.
Working with Cosmo 121
It has moderate contrast on both light and dark fabric — usable on either, but test a few stitches on your chosen ground first.
Its nearest neighbor, Cosmo 4905, is barely a step away (ΔE 2.32). Tweed the two together for subtle shading, or substitute freely when one is out of stock.
Color Harmonies for Cosmo 121
Cosmo threads that pair well with 121, based on color theory harmony rules in CIELAB color space.
Greens Family
Cosmo 121 in context with nearby shades from the greens color family.
About Cosmo 121
Cosmo 121 is a dark, moderately saturated shade from the greens family with true green tones. Expect a dark and rich look that suits nature scenes, holiday projects, and similar motifs. Cross stitch enthusiasts often reach for this thread when stitching landscape details or ferns.
Frequently Asked Questions
What color is Cosmo 121?
Cosmo 121 is a dark green shade (hex #254628, RGB 37, 70, 40) in the greens family, commonly used for shamrock designs, frog patterns, and similar motifs.
What's the closest DMC match for Cosmo 121?
The closest DMC match for Cosmo 121 is DMC 986 (Forest Green very dark) with a 82% match based on visual color similarity. Other near matches include DMC 895 (Hunter Green very dark, 82%) and DMC 319 (Pistachio Green very dark, 80%).
What's a good substitute for Cosmo 121?
The closest Cosmo threads to 121 are 4905 (ΔE 2.32), 320 (ΔE 4.15), and 537 (ΔE 4.51). These are useful substitutes when 121 is unavailable or for building gradients.
What projects use Cosmo 121?
Cross-stitchers pull Cosmo 121 for charts featuring shamrock designs, frog patterns, moss textures, avocado themes. The dark tone reads cleanly on its own and slots into multi-color palettes — see the color harmonies below for pairing ideas.
What fabric color works best with Cosmo 121?
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, 121 has a contrast ratio of about 10.6:1 on white fabric and 2:1 on black. As a cool shade, its cool cast recedes visually — useful for backgrounds, shadows, water and sky, and calm, restful palettes.