Summer's Day (BM CSP-780)
Illustrative room. Screen colors vary; test a sample before you paint.
Summer's Day (BM CSP-780) is a deep, warm green from Benjamin Moore: LRV 32.3, so it reflects about 32 percent of the light that hits it.
Colors that go with Summer's Day
Four Benjamin Moore colors picked for Summer's Day by this site's color math: a trim white, a deeper green, a quiet contrast from another family, a dark accent. Benjamin Moore did not choose these pairings.
Closest match in every other brand
Each brand's closest color to Summer's Day, ranked by CIEDE2000 (deltaE): under 1.0 is indistinguishable, 1.0 to 2.3 very close, 2.3 to 5 noticeably different, over 5 clearly different.
| Brand | Closest color | Code | LRV | deltaE | How close |
|---|---|---|---|---|---|
| Sherwin-Williams | Agate Green | SW 7742 | 34 | 3.1 | noticeably different |
| Behr | Track Green | S410-5 | 31.1 | 1.9 | very close |
| Valspar | Irish Paddock | 5006-4A | 35 | 3.2 | noticeably different |
| PPG Paints | Farm Fresh | 1129-5 | 31 | 2.7 | noticeably different |
Lighter and darker in Benjamin Moore
The Benjamin Moore green colors nearest to Summer's Day (LRV 32.3) by LRV.
Lighter than Summer's Day
Darker than Summer's Day
Color data
| Brand | Benjamin Moore |
|---|---|
| Color code | CSP-780 |
| Hex | #8A9E88 |
| RGB | 138, 158, 136 |
| HSL | 115°, 10%, 58% |
| LRV (light reflectance value) | 32.3 |
| Lab L*, a*, b* | 63.0, -11.4, 9.2 |
| Undertone | Cool Green |
| Temperature | warm |
| Color family | Green |
Same paint, two kinds of light
Summer's Day (BM CSP-780), published as #8A9E88
#799486
#9BA888
These swatches and the rooms above are a simulation, not a measurement. How the visualizer works
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Common questions
- What is the LRV of Summer's Day (BM CSP-780)?
- Summer's Day has an LRV of 32.3. LRV runs from 0 (black) to 100 (pure white) and measures the share of light a surface reflects, so Summer's Day is a deep color.
- What is the closest match to Summer's Day in another brand?
- Track Green (Behr S410-5) from Behr, at a deltaE of 1.9 (very close).
- Is Summer's Day warm or cool?
- Benjamin Moore lists Summer's Day as warm, with a Cool Green undertone. Its Lab b* value is 9.2; a higher b* is warmer and yellower, a lower one cooler and bluer.
Sources: 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.