Porpoise Alt (PPG1010-5)
A warm, dark ash gray. Between Up In Smoke and Thunderstorm. The warm brown gives it earthy character at a dark depth.
About PPG Porpoise Alt
Porpoise Alt (PPG1010-5) is a gray from PPG's collection with an LRV of 16 and warm dark ash undertones. A warm, dark ash gray. Between Up In Smoke and Thunderstorm. The warm brown gives it earthy character at a dark depth.
At an LRV of just 16, Porpoise Alt is a dark, dramatic color that absorbs most of the light that hits it. This makes it perfect for creating bold, moody statements on accent walls, front doors, shutters, and exterior trim. It commands attention and creates a striking contrast with white or light-colored trim. Use it where you want real visual impact. In full room applications, generous lighting and light-colored furnishings prevent the space from feeling oppressive.
Light Reflectance Value (LRV)
Porpoise Alt has an LRV of 16, placing it in the dark range on the 0-to-100 scale. LRV measures the percentage of visible light a color reflects. A pure black has an LRV of 0 and a pure white has an LRV of 100. Understanding a color's LRV helps you predict how it will feel in your space: higher LRV means brighter and more spacious, lower LRV means cozier and more intimate.
Undertone Analysis
Porpoise Alt has warm dark ash undertones. Undertones are the subtle background colors that become visible in different lighting conditions. Even colors that look "neutral" in the store will reveal their undertones once they are on your walls and interacting with natural light, artificial light, and the colors around them.
A warm, dark ash gray. Between Up In Smoke and Thunderstorm. The warm brown gives it earthy character at a dark depth. Warm undertones like these pair naturally with other warm elements: honey-toned wood floors, brass and gold hardware, cream-colored textiles, and warm-toned furnishings. They can clash with strongly cool elements like icy blue accents or chrome fixtures, though the effect depends on the strength of the undertone.
Lighting Behavior
Warm and grounding. In bright rooms, a warm dark gray. In dim rooms, approaching charcoal.
Every paint color looks different depending on the light source in your room. South-facing rooms get warm, direct sunlight that brings out yellow and warm undertones. North-facing rooms get cool, indirect light that emphasizes blue and gray undertones. East-facing rooms are bright and warm in the morning, cooler in the afternoon. West-facing rooms are the opposite: cool morning, warm afternoon. Incandescent and warm LED bulbs push colors warmer, while cool-white LEDs and fluorescent tubes push colors cooler. To avoid surprises, always test Porpoise Alt with a physical sample on your actual wall, and observe it at different times of day before committing.
Best Rooms for Porpoise Alt
PPG recommends Porpoise Alt for: accent wall, exterior, cabinets, office, front door.
On kitchen and bathroom cabinets, Porpoise Alt offers a fresh, clean look. Cabinet colors are seen up close and under task lighting, so the undertones matter even more than on walls. On an accent wall, Porpoise Alt creates a focal point that draws the eye and adds visual depth to the room. Pair it with a lighter color on the remaining walls for the best contrast. On a front door, Porpoise Alt makes a strong first impression. Front door colors are seen in full outdoor light, so choose a finish with some sheen (satin or semi-gloss) for durability and visual impact.
Closest Matches in Other Brands
Find the closest equivalent to PPG Porpoise Alt from other paint brands. Matches are calculated using Delta E (CIE2000), the industry standard for measuring perceptual color difference.
Benjamin Moore Matches
Gettysburg Gray is greener.
View all Benjamin Moore matches →Sherwin Williams Matches
Frequently Asked Questions
The closest Sherwin Williams match for PPG Porpoise Alt is Cityscape (SW 7067) with a Delta E of 3.8, which rates as a "good match" match. Cityscape is similar. A Delta E under 2 means most people cannot tell the colors apart, while 2 to 4 means the difference is subtle.
Porpoise Alt has warm dark ash undertones. A warm, dark ash gray. Between Up In Smoke and Thunderstorm. The warm brown gives it earthy character at a dark depth. Undertones become most visible when the color is on a large surface like a wall, and they shift depending on the light source in your room. Always test with a physical sample in your specific space to see how the undertones interact with your lighting, flooring, and furnishings.
Porpoise Alt (PPG1010-5) has a Light Reflectance Value (LRV) of 16, which puts it in the dark range. LRV measures the percentage of light a color reflects on a scale from 0 (pure black) to 100 (pure white). At 16, this is a darker color that creates a cozy, intimate atmosphere. Pair it with bright white trim for the best contrast.
Porpoise Alt leans warm. The warm dark ash undertones give it a cozy, inviting quality. It pairs naturally with other warm elements like wood tones, brass hardware, and cream textiles. In north-facing rooms, the warmth is especially welcoming.
Color data sourced from manufacturer specifications. Match calculations use Delta E (CIE2000) computed from Lab color space conversion. Last reviewed: March 22, 2026.