DMC 3778 to Cosmo: Thread Conversion

DMC 3778 Light Terra Cotta embroidery floss

The closest Cosmo equivalent to DMC 3778 (Light Terra Cotta) is Cosmo 464.

Close Match

Hex #D98978 · reds family

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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.

DMC 3778 #D98978
92% match
Stored match for Cosmo 464 Cosmo 464 Cosmo 464 does not have an official hex preview stored on this site. Treat the page as a physical skein shortlist, then verify the real thread in person before you rely on the match.

Only the DMC swatch is rendered as stored color data here. Compare the physical target skein before you assume a visual match.

Amazon: DMC 3778 → LoveCrafts: DMC 3778 → Amazon: Cosmo 464 →

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Conversion Notes

Cosmo 464 is a close match for DMC 3778 that works well in floral and folk art contexts. The warm pinkish-red-brown character of Light Terra Cotta is generally preserved in Cosmo's version, with Cosmo's characteristic saturation profile applying to this mid-range terra cotta: the color reads as warm and present without significant drift from the DMC original in most practical applications. Cosmo's soft thread hand is comfortable for the extended fills where this color often appears in rose and peony designs. As with all terra cotta family substitutions, comparing the thread against the other family values in your project — particularly the darker 3777 and lighter 3771 that bracket it in the gradient — ensures gradient transitions remain even and naturalistic under the specific lighting conditions the piece will be displayed in. Keeping the full terra cotta gradient sequence in a single brand where possible is advisable for the most consistent shading results.

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 3778, 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.

Read the Stitchies methodology

Decision guide

When to trust DMC 3778 to Cosmo 464

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 3778 is unavailable and Cosmo 464 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 3778 and Cosmo 464 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

  1. Compare DMC 3778 and Cosmo 464: lay the physical skeins together in daylight before you mix brands in the same stitched area.
  2. Test on your project fabric: stitch a small sample so fabric color and stitch density reveal whether the match still holds at full coverage.
  3. 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 3778 to Cosmo FAQ

These answers are the same statements published in this page's FAQ structured data.

What is the Cosmo equivalent of DMC 3778?+

The closest Cosmo equivalent to DMC 3778 (Light Terra Cotta) is Cosmo 464. This is a close match.

Is the DMC 3778 to Cosmo conversion exact?+

The conversion from DMC 3778 (Light Terra Cotta) to Cosmo 464 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 3778 and Cosmo 464 in the same project?+

You can use DMC 3778 and Cosmo 464 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.

← All conversions for DMC 3778 Browse reds colors

Other Conversions for DMC 3778

DMC 3778 → Anchor 1013 DMC 3778 → Madeira 0403 DMC 3778 → Sullivans 45391 DMC 3778 → J&P Coats 2338 DMC 3778 → Bucilla 3778

Similar DMC Colors

Shades closest to DMC 3778 — handy if Cosmo 464 isn't quite right:

DMC 223

Light Shell Pink

DMC 3921

Light Salmon Red

DMC 962

Medium Dusty Rose

DMC 106

Variegated Coral
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