Isacord 40 4421 - Light Mallard
Isacord 4421 (Light Mallard) - the 40 thread, not the rayon variant. Production color values plus the swap-in alternatives by brand.
Closest Pantone match
The nearest Pantone Coated swatch to Isacord 4421, ranked by perceptual color distance (CIEDE2000). The lower the ΔE, the closer the match.
Cross-brand alternatives
If your shop stocks a different brand, here are the closest equivalents to Isacord 4421 - ranked by perceptual color distance (CIEDE2000). Anything under ΔE 2 is visually indistinguishable; under ΔE 5 is acceptable for most production work.
| Swatch | Brand | Code | Name | HEX | ΔE |
|---|---|---|---|---|---|
| Madeira Classic Rayon | 1093 | Indian Ocean Blue | #1BBBC9 |
2.29 | |
| Isacord 40 | 4010 | Caribbean Blue | #00BECC |
3.04 | |
| Floriani PolyEmbroidery | K33 | Blue Harmony | #53BBC8 |
3.39 | |
| Madeira Classic Rayon | 1094 | Periwinkle | #00B3C9 |
3.90 | |
| Isacord 40 | 4101 | Wave Blue | #00A5B4 |
4.87 | |
| Coats Sylko | B6109 | Turquoise Blue | #3DA3AC |
4.98 | |
| Robison-Anton Rayon | 2518 | Indian Ocean Blue | #2DC6D6 |
5.13 | |
| Robison-Anton Rayon | 2306 | Periwinkle | #28C4D8 |
5.30 | |
| Floriani PolyEmbroidery | 310 | Colony Blue | #5AB3C6 |
5.47 | |
| Madeira Polyneon 40 | 1694 | Marine Aqua | #00A0AE |
6.25 | |
| Coats Sylko | B6323 | Medium Turquoise | #41ABC4 |
6.59 | |
| Madeira Polyneon 40 | 1893 | Surf Blue | #2EADC9 |
6.70 |
How to use Isacord 4421
Isacord 4421 (Light Mallard) is one of Isacord's production embroidery threads in the 40 line. Use it for fills, satin stitching, and outline work on any standard fabric. Match against the customer's brand standards before committing to production - the cross-brand alternatives above let you sub a closely-equivalent color from whichever line your shop has loaded.
If you're spec'ing a new logo, start by matching PMS 631 C in the customer's brand standards, then pick whichever brand line your machines run. The cross-brand table above is the lookup you'd do at the digitizing stage.
Try the full Thread Color Matcher to convert any PMS, hex, or image color into thread matches across all 5 brands at once.
Frequently asked
What hex code is Isacord 4421?
Isacord 40 4421 (Light Mallard) is hex #33B4BE, RGB 51/180/190.
What PMS color is closest to Isacord 4421?
The nearest Pantone Coated match is PMS 631 C (#3EB1C8), with a perceptual color distance of ΔE 5.15 from Isacord 4421. Lower ΔE means closer match - under 2 is visually indistinguishable, under 5 is acceptable for production.
What's the closest equivalent to Isacord 4421 in Madeira?
Madeira Classic Rayon 1093 (Indian Ocean Blue) is the closest cross-brand match to Isacord 4421, with a perceptual color distance of ΔE 2.29.
Is Isacord 4421 good for production embroidery?
Yes. Isacord 40 is one of the major production embroidery thread lines used by promotional products distributors and embroiderers worldwide. Match against the customer's brand standards before committing to a job - the cross-brand alternatives above let you sub a closely-equivalent color from whichever line your shop has loaded.
Where can I match other PMS colors to Isacord threads?
Use the free Thread Color Matcher at /tools/thread-match - it converts any PMS code, hex, RGB, or color from an uploaded image into the closest thread across Madeira, Isacord, Robison-Anton, Coats, and Floriani. No account required.
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