Autonomous vs Pewter Green
Both from Sherwin-Williams's palette. Hue-wise, Autonomous belongs to the grey family and Pewter Green to the green-grey family. Autonomous (LRV 57) reflects noticeably more light than Pewter Green (LRV 12), a difference of 45 points that becomes especially apparent in rooms with limited natural light. Both lean neutral, so they'll behave similarly in mixed or changing light conditions. With a ΔE of 39.4, the contrast is hard to miss. These aren't variations on a theme — they're two different answers to the same question. Below you'll find 10 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Autonomous vs Pewter Green in Real Spaces
10 real rooms side by side. Seeing Autonomous and Pewter Green in actual rooms makes the difference concrete; browse the spaces below to get a feel for how each color lives on a wall.
Living Room
In a living room, color works across both daylight and evening light — the same wall can read very differently at noon and at 8pm. The LRV gap is large enough that Autonomous will make the room feel meaningfully brighter than Pewter Green would.
Bedroom
The context that matters most in a bedroom is how a color reads under a bedside lamp at night, not under noon daylight. Autonomous reflects noticeably more light off the walls, making the space read more open than Pewter Green.
Kitchen
In a kitchen, colors are seen under bright task lighting that amplifies undertones — what reads neutral elsewhere can show its hand here. Autonomous reflects noticeably more light off the walls, making the space read more open than Pewter Green.
Dining Room
A dining room lit by a dimmed pendant or candles is one of the most forgiving environments for paint — warm light softens almost everything. Autonomous returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
Bathroom
Bathrooms are one of the few spaces where you're genuinely enclosed by the paint color, which makes the choice between these two more consequential. Autonomous reflects noticeably more light off the walls, making the space read more open than Pewter Green.
Home Office
The test for a home office color isn't how it looks in a quick glance — it's whether it still feels right after a full day of work. Autonomous reflects noticeably more light off the walls, making the space read more open than Pewter Green.
Mudroom
Mudrooms are seen in passing, often under whatever light comes through the door — a context that favors colors with some depth. Autonomous returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
Patio
Outside, paint color competes with sky, landscaping, and direct sun — all of which shift how both of these read compared to an indoor chip. Autonomous returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
House
Seen across an entire facade, subtle tonal differences become pronounced. What reads as nearly the same on a chip often reads as clearly different at scale. Autonomous reflects noticeably more light off the walls, making the space read more open than Pewter Green.
Front Door
A front door is a focal point — small color differences read clearly at this concentrated scale. The LRV gap is large enough that Autonomous will make the room feel meaningfully brighter than Pewter Green would.
Color Details
Autonomous vs Pewter Green Simulated Comparison
5 simulated room previews — drag the slider on each to see Autonomous on one side and Pewter Green on the other.
Digital color is approximate. These simulations are generated from the manufacturer's hex values and overlaid on grayscale room photos — your screen's calibration, brightness, and viewing angle all affect how they render. Before committing to either color, test physical samples in your own space under the light you actually live with.
More Autonomous comparisons
See how Autonomous stacks up against other well-photographed colors across different brands and tones.
At LRV 83 vs 57, White Dove is decisively the brighter choice.
Ammonite reflects far more light (LRV 69 vs 57), opening up a space where Autonomous encloses it.
At LRV 57 vs 6, Autonomous is decisively the brighter choice.
Autonomous reads slightly lighter (LRV 57 vs 52), a gap that shows most in low-lit rooms.
Autonomous reflects far more light (LRV 57 vs 30), opening up a space where Evergreen Fog encloses it.
A 5-point LRV gap (57 vs 52) makes Autonomous the marginally brighter of the two.
Agreeable Gray reads slightly lighter (LRV 60 vs 57), a gap that shows most in low-lit rooms.
Their light reflectance is nearly identical (LRV 58 vs 57), so neither reads brighter in a room.
At LRV 57 vs 27, Autonomous is decisively the brighter choice.
Autonomous reflects far more light (LRV 57 vs 43), opening up a space where French Gray encloses it.
Autonomous reflects far more light (LRV 57 vs 4), opening up a space where Naval encloses it.
Their light reflectance is nearly identical (LRV 57 vs 55), so neither reads brighter in a room.
At LRV 57 vs 13, Autonomous is decisively the brighter choice.
At LRV 57 vs 44, Autonomous is decisively the brighter choice.
Pure White reflects far more light (LRV 84 vs 57), opening up a space where Autonomous encloses it.
Autonomous reflects far more light (LRV 57 vs 21), opening up a space where Artichoke encloses it.
A 9-point LRV gap (66 vs 57) makes Balboa Mist the marginally brighter of the two.
At LRV 74 vs 57, Shoji White is decisively the brighter choice.
At LRV 83 vs 57, Snowbound is decisively the brighter choice.
A 11-point LRV gap (68 vs 57) makes Skimming Stone the marginally brighter of the two.
Autonomous reflects far more light (LRV 57 vs 41), opening up a space where Dix Blue encloses it.
Calamine reads slightly lighter (LRV 68 vs 57), a gap that shows most in low-lit rooms.
Autonomous reflects far more light (LRV 57 vs 25), opening up a space where Treron encloses it.
At LRV 57 vs 12, Autonomous is decisively the brighter choice.
A 11-point LRV gap (57 vs 45) makes Autonomous the marginally brighter of the two.
Autonomous reflects far more light (LRV 57 vs 31), opening up a space where Pale Green encloses it.
Autonomous reflects far more light (LRV 57 vs 7), opening up a space where Pine Needle encloses it.
Autonomous reflects far more light (LRV 57 vs 24), opening up a space where Cement grey encloses it.
With LRVs of 57 and 57, the two reflect almost the same amount of light.
Just Walnut reflects far more light (LRV 72 vs 57), opening up a space where Autonomous encloses it.