I just painted my breakfast nook BM Tranquility (AF-490), and also think it’s a tad dark. I really liked the color better when it was wet (a little lighter). I’m wondering if I can take the can back to the paint store and have them lighten it. If I asked them to just add white to the can, would that work? We only used maybe 1/4 of the gallon for two coats on the top half of our breakfast nook, and had planned to use the rest to paint our master bedroom, but I just think it’s too dark. I guess it couldn’t hurt to try?

It has been a while since the last activity on this thread, and I felt it might be beneficial to give my updated perspective on White Opulence #879 from Benjamin Moore as a paint color for main areas. Having lived with this color for a bit longer now since my last comment, I am beginning to understand how tightly it regulates what other colors can be placed with it for anyone who cares about a homogeneous scheme and also how undeniable the pink tone can be when applied over large surface areas. White Opulence is a tint of red, but it is so light that in ample daylight or under bright white lighting it can "read" as white. In average daylight, it produces a whisper-light pink hue. The effect of this is magnified the larger the area that is covered by it. Using this color on the walls in the main space of a large, open-plan layout with high ceilings, for example, will imbue the area with a light, yet undeniable, pale pink cast in average lighting. It would be a good idea to prepare not only yourself but also any other significant users of the space of the pink tinge before selecting this color because some people truly dislike pink, and it is courteous to work with all regular users of spaces during design planning to try to ensure no one will be overly uncomfortable with the final effect. One thing that hasn't been discussed is how White Opulence can cast a peach tone under warmer lighting colors, especially in the absence of any compensating daylight, meaning nighttime in most home spaces. If peach is a color you want to avoid and you utilize warm lighting -- that is, progressively orange-tinged the further under a 4000K color temperature you go -- then this is a paint color to avoid. The general recommendation is that 4000K is quite cool for home environments, so if you don't know what color temperature your home lighting is, you can probably assume it is warmer than 4000K if you selected average bulbs from your home supplies provider. White Opulence as a red-based white was an attractive choice for my main space because I already had a red accent in a permanent finish and personally prefer the fresh look that a red-white lends versus common alternate choices for main area wall colors like yellow-based beiges or blue-based grays. The problem is that so many home goods available are manufactured in colors that go with beige and gray wall colors rather than the faint red-white of White Opulence that color coordination requires more work than may be expected. Of course, you could decorate using pure white items, but what you really need are options for whisper pink basics which are hard to find. Adding stronger pink or red items is not always the solution either because you cannot feasibly fill the room with accents; you need some basics that blend with the wall tone. Then there is the issue of coordinating White Opulence with colors for auxiliary rooms if you wish to have some variety throughout the home while still maintaining the feel that all of the home's colors work together. Most blues coordinate with White Opulence, but if you have already used red accents in rooms painted with White Opulence, then red is challenging to pair with blue in most instances unless it is a dark, cool blue like navy. Where this has been a dilemma for me has been my hallway colors connecting the main open space to the bedrooms which are all different pastels. The color plan I have will work, and I'll enjoy the variety of colors that I have been able to make flow together, but to be honest, at times I have wondered how much easier the design process might have been if I had picked plain white for the main space. White is the ultimate neutral some might say. At the very least, a basic white for the main area would have given me more freedom in selecting fabrics and other home products for the main space as well as coordinating colors for other rooms. It is all too easy to second-guess decisions that will affect your life long-term. I am using Benjamin Moore's durable Aura formula in a satin finish, so I expect the new White Opulence paint will last decades. Had I selected a plain white or yellow- or blue-based off white, I might be back on this very forum wishing I had gone with White Opulence to add appeal beyond the standard choices. I hope this is helpful to anyone still considering this color.

That's the paint base info. My guess since there's no label/formula is it's White OC-151.

Check out Black Horizon. I will suggest before doing that you make sure all your lighting is not only the same but LED and IMO 4000K. Steam has a bit of green undertone and I hope you are using it in different sheens for the walls and trim