Sea Serpent and Indigo Batik: the documented difference
Sea Serpent has an LRV of 7; Sherwin-Williams Indigo Batik SW-7602 is 8. The difference is 1 points, with Indigo Batik returning more light under the reference measurement. Choose by the material relationship as well as the number. Sea Serpent's very low reflectance supports a dark navy backdrop, with a black-like appearance possible in weak illumination. Indigo Batik is a saturated denim blue with very low reflectance.
| Color | Brand / code | LRV |
|---|---|---|
| Sea Serpent | Sherwin-Williams SW-7615 | 7 |
| Indigo Batik | Sherwin-Williams SW-7602 | 8 |
The choice beside white shelves and cognac leather
Cognac leather and white shelving can keep the room legible, even when the darkest painted areas show little obvious blue.
Set up both candidates with white shelves and cognac leather. 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 Cyberspace has an LRV of 6. The undertones and neighboring colors covers that related choice.
Plan for a nearly black appearance in weak light and check whether the shelf edges remain readable. Assess Sea Serpent and Indigo Batik 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: Sherwin-Williams Sea Serpent SW-7615. The recorded LRV is 7. 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.

