What 63 tells you about Sea Salt
The published LRV of Sherwin-Williams Sea Salt SW-6204 is 63. It describes light reflectance; it does not specify an undertone or predict the brightness of your room. Sea Salt's published blue undertone makes a green-only expectation too narrow, even though its primary description is green.
The choice beside white tile and brushed nickel
White tile supplies a stable nearby reference; nickel adds another cool-looking surface that should remain visible during the trial.
Compare Sea Salt and Comfort Gray at equal size, first considering depth and then hue. A lighter blue, green or pink is still a colored surface. Use the LRV to organize the depth question without assuming that it measures saturation or predicts which hue the room will favor.
What the comparison can—and cannot—settle
Sea Salt has an LRV of 63; Sherwin-Williams Comfort Gray SW-6205 is 54. The difference is 9 points, with Sea Salt returning more light under the reference measurement. Sea Salt is a muted cool green with blue in its published undertone description. The value measures reflectance, so it cannot by itself identify an undertone, a coating finish or the amount of illumination needed in the room. The daylight and evening-light checks covers that related choice.
Check the return wall before buying: the preferred balance of green and blue matters more than the name Sea Salt. Do not read LRV 63 as a percentage improvement in perceived room brightness. Make the decision with the board upright at the actual wall or cabinet position, including the least illuminated portion. The north-facing room assessment covers that related choice. Before ordering samples, compare room-planning features in the paint color visualizer roundup.
Sources & notes
Color specifications: Sherwin-Williams Sea Salt SW-6204. The recorded LRV is 63. 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. Sherwin-Williams 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.

