Gossamer Blue (BM 2123-40) vs Palladian Blue (BM HC-144)
Illustrative room. Screen colors vary; test a sample before you paint.
Quick decision
- Lighter
- Palladian Blue, LRV 60.4 vs 55.
- Warmer
- Palladian Blue (Lab b* 2.1 vs -2.4). Gossamer Blue reads blue-gray; Palladian Blue reads green-gray.
- North rooms
- Palladian Blue keeps more brightness (L* 78.5 vs 75.1 in north light); both drift gray about equally.
- Trim that works
- Blue Bonnet BM 2050-70, #DDF0EC, LRV 81.8: 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 Palladian Blue
Gossamer Blue (BM 2123-40) is darker than Palladian Blue (BM HC-144) and cooler: LRV 55 vs 60.4, deltaE 4.6 (noticeably different).
Side by side
| Measure | Gossamer Blue | Palladian Blue | Gap |
|---|---|---|---|
| Brand | Benjamin Moore | Benjamin Moore | |
| Color code | 2123-40 | HC-144 | |
| Hex | #B3C8C8 | #C1D1C9 | |
| RGB | 179, 200, 200 | 193, 209, 201 | |
| HSL | 180°, 16%, 74% | 150°, 15%, 79% | |
| LRV (light reflectance value) | 55 | 60.4 | −5.4 |
| Lab L* | 79.1 | 82.5 | −3.4 |
| Lab a* | -7.1 | -6.9 | −0.2 |
| Lab b* | -2.4 | 2.1 | −4.5 |
| Undertone | Cool Green | Cool Green | |
| Temperature | neutral | neutral | |
| Color family | Blue | Green |
Same paint, two kinds of light
Gossamer Blue (BM 2123-40), published as #B3C8C8
#A1BEC6
#C6D2C8
Palladian Blue (BM HC-144), published as #C1D1C9
#AFC7C7
#D3DBC9
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 Palladian Blue (BM HC-144) for a small room or a north-facing room, because it is 5.4 LRV points lighter (60.4 vs 55), so it bounces back more of the limited light
- Pick Gossamer Blue (BM 2123-40) for a south-facing room, because its Lab b* is -2.4 against 2.1, so it is the cooler of the two and offsets warm direct sun
- Pick Palladian Blue (BM HC-144) to warm a north-facing room, because it is the warmer of the two (Lab b* 2.1), which counters cool indirect light
Closest matches to Gossamer Blue in other brands
Closest matches to Palladian Blue in other brands
Common questions
- Is Gossamer Blue the same color as Palladian Blue?
- They are noticeably different: a CIEDE2000 difference of 4.6. Most people can see the difference between Gossamer Blue and Palladian Blue side by side.
- Which is lighter, Gossamer Blue or Palladian Blue?
- Palladian Blue, with an LRV of 60.4 against 55.
Full pages
Related comparisons
Sources: Gossamer Blue: LRV and hex as published by the manufacturer, via PaintDB (CC BY 4.0); Palladian Blue: LRV and hex from Benjamin Moore technical data (verified 2026-10-02). 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.