DMC 158 to Cosmo: Thread Conversion
The closest Cosmo equivalent to DMC 158 (Medium Very Dark Cornflower Blue) is Cosmo 150.
Close MatchHex #4C526E · blues family
This Cosmo conversion is based on approximate data that has not been independently verified. If you notice an error, let us know — community corrections help everyone.
Only the DMC swatch is rendered as stored color data here. Compare the physical target skein before you assume a visual match.
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Conversion Notes
Cosmo 150 is a close match in the medium-dark cornflower blue range with Cosmo's characteristic softer hand and slightly less twist than DMC's construction. The flatter stitch surface Cosmo produces suits 158's role as a structural workhorse mid-tone very well — large fill areas covering uniform clothing, background sky, and water surfaces benefit from the even, smooth, unpronounced coverage that a lower-profile stitch creates. The muted, grey-violet quality of 158 is enhanced by a flat stitch surface that doesn't introduce texture variation to distract from the color. Some stitchers report Cosmo's version running very slightly warmer in this specific range — a very small shift toward the violet end rather than staying in the cooler grey-blue zone. This is worth checking in your specific application: test Cosmo 150 alongside your other cornflower blue family threads in natural daylight to confirm the grey-muted character holds up correctly across the full shading sequence. If any shade in your gradient reads noticeably warmer or cooler than expected relative to its neighbors, the gradient's visual logic breaks down. For standalone use without adjacent cornflower family threads, the slight warmth variation is typically imperceptible.
Reference quality
How We Validate This Match
This Cosmo page is meant to help you shortlist a replacement quickly, then verify the physical skein before you mix brands in the same stitched area.
- Methodology
- This comparison uses the site's source-of-truth record for DMC 158, the stored Cosmo equivalent, and the saved close rating before rendering the page copy.
- Verification status
- Close cross-brand match. Treat it as a shortlist, not proof that the physical threads will be visually identical under every fabric and light condition.
- Source basis
- Approximate cross-brand floss mapping. Treat it as lower-confidence until you compare the physical Cosmo skein against the DMC reference.
- Last reviewed
- 2026-04-20
- Best use
- Close and approximate matches work best for replacements, backups, or whole-project brand swaps after you stitch a small sample on the target fabric.
Decision guide
When to trust DMC 158 to Cosmo 150
This page is strongest as a decision aid, not as a guarantee that two branded skeins will vanish into each other without testing.
Best for
- + Replacing missing floss when DMC 158 is unavailable and Cosmo 150 is good enough after a stitched sample check.
- + Shortlisting a Cosmo substitute before you buy skeins, especially if your project can tolerate small differences in sheen or dye lot.
- + Comparing this Cosmo candidate against the other conversions and nearby DMC shades linked from the page before you commit to a full swap.
Watch for
- ! Close matches are not safe to assume interchangeable in focal areas without a physical test on your fabric.
- ! Brand sheen, strand thickness, and project lighting can make DMC 158 and Cosmo 150 look further apart than the stored match rating suggests.
- ! If the design depends on smooth gradients or skin-tone transitions, compare this swap against the neighboring DMC shades before you substitute a large block.
Before you commit
- Compare DMC 158 and Cosmo 150: lay the physical skeins together in daylight before you mix brands in the same stitched area.
- Test on your project fabric: stitch a small sample so fabric color and stitch density reveal whether the match still holds at full coverage.
- Keep a fallback ready: if the swap feels off, use the linked related DMC shades or another brand conversion instead of forcing the closest stored match.
DMC 158 to Cosmo FAQ
These answers are the same statements published in this page's FAQ structured data.
What is the Cosmo equivalent of DMC 158?+
The closest Cosmo equivalent to DMC 158 (Medium Very Dark Cornflower Blue) is Cosmo 150. This is a close match.
Is the DMC 158 to Cosmo conversion exact?+
The conversion from DMC 158 (Medium Very Dark Cornflower Blue) to Cosmo 150 is rated as a close match. Thread colors vary slightly between brands, so compare physical thread in daylight before stitching a large area.
Can I mix DMC 158 and Cosmo 150 in the same project?+
You can use DMC 158 and Cosmo 150 together when the close match is acceptable for your project, but always test them side by side on your fabric first because sheen and dye lots can create visible differences.
Other Conversions for DMC 158
Similar DMC Colors
Shades closest to DMC 158 — handy if Cosmo 150 isn't quite right:
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