Wrought Iron (BM 2124-10) vs Iron Mountain (BM 2134-30)
Illustrative room. Screen colors vary; test a sample before you paint.
Quick decision
- Lighter
- Iron Mountain, LRV 11 vs 8.2.
- Warmer
- Iron Mountain, both neutral gray (Lab b* 1.5 vs -0.7).
- North rooms
- Iron Mountain keeps more brightness (L* 32.1 vs 27.5 in north light); both drift gray about equally.
- Trim that works
- Oyster BM 2115-70, #ECE9E8, LRV 80.4: the Benjamin Moore white closest in hue to both.
- Closeness
- deltaE 4.6, noticeably different. At 4.6, test both: on a full wall the difference will show.
See each color
More comparisons with Wrought Iron
Wrought Iron (BM 2124-10) is slightly darker than Iron Mountain (BM 2134-30) and slightly cooler: LRV 8.2 vs 11, deltaE 4.6 (noticeably different).
Side by side
| Measure | Wrought Iron | Iron Mountain | Gap |
|---|---|---|---|
| Brand | Benjamin Moore | Benjamin Moore | |
| Color code | 2124-10 | 2134-30 | |
| Hex | #494A4B | #575553 | |
| RGB | 73, 74, 75 | 87, 85, 83 | |
| HSL | 210°, 1%, 29% | 30°, 2%, 33% | |
| LRV (light reflectance value) | 8.2 | 11 | −2.8 |
| Lab L* | 31.4 | 36.3 | −4.9 |
| Lab a* | -0.2 | 0.4 | −0.6 |
| Lab b* | -0.7 | 1.5 | −2.2 |
| Undertone | Warm Charcoal | Neutral | |
| Temperature | neutral | neutral | |
| Color family | Gray | Gray |
Same paint, two kinds of light
Wrought Iron (BM 2124-10), published as #494A4B
#3A4249
#58534B
Iron Mountain (BM 2134-30), published as #575553
#484C51
#665E53
These swatches and the rooms above are a simulation, not a measurement. How the visualizer works
Which should you pick
Rules of thumb computed from the LRV and Lab values in the table above; no room test was done.
- Pick Iron Mountain (BM 2134-30) for a small room or a north-facing room, because it is 2.8 LRV points lighter (11 vs 8.2), so it bounces back more of the limited light
- Pick Wrought Iron (BM 2124-10) for a south-facing room, because its Lab b* is -0.7 against 1.5, so it is the cooler of the two and offsets warm direct sun
- Pick Iron Mountain (BM 2134-30) to warm a north-facing room, because it is the warmer of the two (Lab b* 1.5), which counters cool indirect light
Closest matches to Wrought Iron in other brands
Closest matches to Iron Mountain in other brands
Common questions
- Is Wrought Iron the same color as Iron Mountain?
- They are noticeably different: a CIEDE2000 difference of 4.6. Most people can see the difference between Wrought Iron and Iron Mountain side by side.
- Which is lighter, Wrought Iron or Iron Mountain?
- Iron Mountain, with an LRV of 11 against 8.2.
Full pages
Related comparisons
Sources: Wrought Iron: LRV and hex from Benjamin Moore technical data (verified 2026-10-02); Iron Mountain: LRV and hex as published by the manufacturer, via PaintDB (CC BY 4.0). Color differences are CIEDE2000 values computed by this site from the hex values (data snapshot 2026-10-01). Color names and codes belong to their manufacturers.