Dusty Mauve and First Light: the documented difference
Dusty Mauve has an LRV of 35.07; Benjamin Moore First Light 2102-70 is 75.86. The difference is 40.79 points, with First Light returning more light under the reference measurement. Choose by the material relationship as well as the number. Dusty Mauve is substantially deeper than First Light, so it offers rosy color with more presence than a pale blush. First Light is an airy light pink.
| Color | Brand / code | LRV |
|---|---|---|
| Dusty Mauve | Benjamin Moore 2174-40 | 35.07 |
| First Light | Benjamin Moore 2102-70 | 75.86 |
The choice beside gray wool and dark walnut
Gray wool and walnut restrain the supporting palette, allowing mauve to remain the main color instead of one of several pink layers.
Set up both candidates with gray wool and dark walnut. Use equal-sized boards with the intended finishes and place them in the same orientation. Do not put one directly beside a window and leave the other in shadow. A difference that follows the position rather than the board is a lighting observation, not evidence that the formula changed.
What the comparison can—and cannot—settle
The alternative Cinnamon Slate has an LRV of 19.71. The undertones and neighboring colors covers that related choice.
Use the neutral fabric to control the overall color balance instead of adding more pink surfaces. Assess Dusty Mauve and First Light alone as well as side by side. The unchosen board will not remain in the finished room, and a preference created only by that neighbor may not survive its removal. Before ordering samples, compare room-planning features in the paint color visualizer roundup.
Sources & notes
Color specifications: Benjamin Moore Dusty Mauve 2174-40. The recorded LRV is 35.07. Named comparison values come from the respective manufacturers; material schemes are editorial suggestions.
This guide reviews published color information and proposes practical sample checks. It does not claim first-hand paint testing or customer-review scores. Benjamin Moore does not sponsor or endorse this site. Product names and trademarks belong to their respective owners. Confirm the color in a physical sample and select the coating for the actual surface and finish.

