Emerald Isle → PPG
The closest PPG matches for Sherwin Williams Emerald Isle (SW 6440), ranked by perceptual color distance.
Finding a PPG Equivalent for Emerald Isle
If you love Sherwin Williams Emerald Isle but need a PPG alternative, you are not alone. This is one of the most common cross-brand paint matching searches, whether you are working with a painter who prefers PPG, your local store does not carry Sherwin Williams, or you simply want to compare prices across brands before committing.
Emerald Isle (SW 6440) is a dark green with rich emerald undertones. A rich, deep emerald green. Bold and dramatic. To find a good PPG match, we need a color that captures not just the right depth (LRV 10) but also that specific undertone character. That is where Delta E color science comes in.
We calculated the perceptual color distance between Emerald Isle and every PPG color using the CIE2000 Delta E formula, which measures how different two colors look to the human eye. A Delta E under 2 means most people cannot tell the colors apart. Between 2 and 4, you might notice a difference in certain lighting. Above 5, the difference is clearly visible side by side.
The results are decent but not perfect. The closest PPG option is Elf (PPG1131-5) with a Delta E of 4.3, which is a "good match" level match. Elf is the closest PPG option at LRV 25. Similar character, though some difference is visible in direct comparison. You will want to test a sample before committing, as the difference may be noticeable in certain lighting.
PPG Matches for Emerald Isle
Elf is the closest PPG option at LRV 25. Similar character, though some difference is visible in direct comparison.
| Emerald Isle | Elf | |
|---|---|---|
| LRV | 10 | 25 |
| Hex | #516B56 | #99A698 |
| Undertone | Rich Emerald | Medium Sage |
| Family | Green | Green |
Undertone Comparison
Emerald Isle has rich emerald undertones. A rich, deep emerald green. Bold and dramatic.
Elf has medium sage undertones. A medium sage green named for its earthy, natural quality. PPG's answer to the medium sage trend.
The undertone difference is worth paying attention to. While they are close in overall appearance, the different undertones mean they may diverge in certain lighting. Emerald Isle's rich emerald quality may read differently than Elf's medium sage character, especially in rooms with strong directional light or colored accents that could pull out one undertone more than the other. Test a sample in your specific room before committing.
How These Colors Behave in Different Lighting
Emerald Isle in Your Room
In bright light, vibrant emerald. In dim rooms, a deep, dark green. Statement-making.
Elf in Your Room
In bright rooms, a definite sage. In dim rooms, a warm gray-green.
LRV and Brightness
Emerald Isle has an LRV of 10, while Elf has an LRV of 25. That means Elf reflects more light. If you switch from Emerald Isle to Elf, the room should feel slightly brighter and more open.
Best Rooms for Emerald Isle
Sherwin Williams recommends Emerald Isle for: accent wall, powder room, front door, office, dining room. With an LRV of 10, this is a dark color that absorbs more light than it reflects. It makes a bold statement and works beautifully on accent walls, front doors, exterior trim, and features where drama is the goal. In a full room, make sure you have good lighting and bright white trim for contrast.
Elf is recommended for: kitchen, bedroom, bathroom, exterior, living room. The recommended applications differ slightly between brands, but the color's properties should work in the same rooms regardless of which brand you choose. Trust the LRV and undertone data more than the specific room suggestions, and always test in your actual space.
Emerald Isle in Other Brands
Looking for Emerald Isle equivalents in other brands besides PPG? We have matches across all major paint brands.
Frequently Asked Questions
The closest PPG match for Emerald Isle (SW 6440) is Elf (PPG1131-5) with a Delta E of 4.3, which rates as a "good match" match. Elf is the closest PPG option at LRV 25. Similar character, though some difference is visible in direct comparison. Delta E measures perceptual color distance on a scale where under 2 means nearly identical, 2 to 4 means close with subtle differences, and over 5 means clearly noticeable.
No, they are not identical. Emerald Isle is a Sherwin Williams color with rich emerald undertones and an LRV of 10. Elf is a PPG color with medium sage undertones and an LRV of 25. With a Delta E of 4.3, you will likely notice a difference, especially in bright or direct lighting. Paint formulations differ between brands, so even colors with similar values can look slightly different due to pigment concentration, binders, and finish.
With a Delta E of 4.3, the difference is enough that they should not be used on adjacent walls in the same room. You can use them in separate rooms of the same house, but be aware that walking from one room to the other may reveal the difference, especially if the rooms have similar lighting. For the most consistent look, pick one brand for all connected living spaces and reserve the other brand for visually separate rooms like bathrooms or bedrooms behind closed doors.
There are several practical reasons to look for a PPG equivalent. Price differences between brands can be significant on large projects. Availability matters if your nearest paint store or home center specializes in PPG. Some painters have strong preferences for one brand's formula based on coverage, dry time, or workability. And if you are touching up existing PPG work, matching within the same brand gives you the best consistency for seamless results.
Match calculations use Delta E (CIE2000) computed from Lab color space conversion. Color data sourced from manufacturer specifications. Last reviewed: March 22, 2026.