DMC 666 to Sullivans: Thread Conversion

DMC 666 Bright Red embroidery floss

The closest Sullivans equivalent to DMC 666 (Bright Red) is Sullivans 45155.

Close Match

Hex #E31D42 · reds family

DMC 666 #E31D42
92% match
Stored match for Sullivans 45155 Sullivans 45155 Sullivans 45155 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 666 → LoveCrafts: DMC 666 → Amazon: Sullivans 45155 →

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Conversion Notes

Sullivans 45155 is a close match for Bright Red. At this level of saturation, the difference between a true neutral bright red and one that drifts even slightly warm or cool becomes more visible than it would in a muted tone, so the close rating is worth taking seriously for critical applications. Dye lot variation can be more pronounced in highly saturated colors like 666 — purchase skeins from the same lot for large fill areas to avoid subtle shifts between orange-red and blue-red batches. Test a swatch on your actual project fabric before committing, since the way bright reds interact with fabric color can amplify or minimize the warmth of the thread. For small accent applications — hearts, berries, decorative dots, and small focal motifs — the close match is entirely functional and most viewers will not notice any deviation from DMC 666. For large, dominant fills where bright red is the hero of the design, the exact-match Anchor 46 or Madeira 0210 will give more reliable results.

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 666, 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.

Read the Stitchies methodology

Decision guide

When to trust DMC 666 to Sullivans 45155

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 666 is unavailable and Sullivans 45155 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 666 and Sullivans 45155 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 666 and Sullivans 45155: 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 666 to Sullivans FAQ

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

What is the Sullivans equivalent of DMC 666?+

The closest Sullivans equivalent to DMC 666 (Bright Red) is Sullivans 45155. This is a close match.

Is the DMC 666 to Sullivans conversion exact?+

The conversion from DMC 666 (Bright Red) to Sullivans 45155 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 666 and Sullivans 45155 in the same project?+

You can use DMC 666 and Sullivans 45155 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 666 Browse reds colors

Other Conversions for DMC 666

DMC 666 → Anchor 46 DMC 666 → Madeira 0210 DMC 666 → Cosmo 800 DMC 666 → J&P Coats 3046 DMC 666 → Dimensions 6666 DMC 666 → Bucilla 666 DMC 666 → Candamar 6028

Similar DMC Colors

Shades closest to DMC 666 — handy if Sullivans 45155 isn't quite right:

DMC 349

Dark Coral

DMC 321

Christmas Red

DMC 350

Medium Coral

DMC 309

Dark Rose
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