DMC 3755 to Sullivans: Thread Conversion
The closest Sullivans equivalent to DMC 3755 (Baby Blue) is Sullivans 45378.
Close MatchHex #92B4CE · blues family
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
Sullivans 45378 is a close match for DMC 3755 Baby Blue. Sullivans' characteristic sheen interacts with Baby Blue's warm pale character in a way that can go either direction: for spring and nursery applications where a soft brightness is welcome, the sheen adds a gentle luminosity that suits the thread's tender character. For designs where the matte softness of a classic pastel is specifically the goal — heritage nursery samplers, vintage baby designs, and pieces that aim for a quiet watercolor quality — the sheen works against that intention and the exact-match brands produce a better aesthetic result. In pale shades, Sullivans can appear slightly different in surface texture from DMC, and this is more apparent in delicate pastels than in dark colors where texture differences are less visible. For nursery projects where precise color mood matters across large fills, keeping all threads from a single brand avoids the visible texture difference that can appear when mixing Sullivans with other brands in adjacent stitched areas under the warm lighting typical of nursery room display environments.
Reference quality
How We Validate This Match
This Sullivans 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 3755, the stored Sullivans 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
- Published cross-brand floss chart mapping. Use it as a shortlist, then confirm with physical thread because sheen and dye lots still matter.
- 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 3755 to Sullivans 45378
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 3755 is unavailable and Sullivans 45378 is good enough after a stitched sample check.
- + Shortlisting a Sullivans substitute before you buy skeins, especially if your project can tolerate small differences in sheen or dye lot.
- + Comparing this Sullivans 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 3755 and Sullivans 45378 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 3755 and Sullivans 45378: 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 3755 to Sullivans FAQ
These answers are the same statements published in this page's FAQ structured data.
What is the Sullivans equivalent of DMC 3755?+
The closest Sullivans equivalent to DMC 3755 (Baby Blue) is Sullivans 45378. This is a close match.
Is the DMC 3755 to Sullivans conversion exact?+
The conversion from DMC 3755 (Baby Blue) to Sullivans 45378 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 3755 and Sullivans 45378 in the same project?+
You can use DMC 3755 and Sullivans 45378 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 3755
Similar DMC Colors
Shades closest to DMC 3755 — handy if Sullivans 45378 isn't quite right:
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