Frank Blue vs Fun Yellow
Both from Sherwin-Williams's palette. Hue-wise, Frank Blue belongs to the blue family and Fun Yellow to the beige-yellow family. Fun Yellow (LRV 78) reflects noticeably more light than Frank Blue (LRV 8), a difference of 70 points that becomes especially apparent in rooms with limited natural light. Frank Blue runs cool while Fun Yellow is decidedly warm, which means they'll respond very differently to warm vs cool light sources. With a ΔE of 95.5, the contrast is hard to miss. These aren't variations on a theme — they're two different answers to the same question. Below you'll find 3 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Frank Blue vs Fun Yellow in Real Spaces
3 real rooms side by side. Seeing Frank Blue and Fun Yellow in actual rooms makes the difference concrete; browse the spaces below to get a feel for how each color lives on a wall.
Living Room
In a living room, color works across both daylight and evening light — the same wall can read very differently at noon and at 8pm. The LRV gap is large enough that Fun Yellow will make the room feel meaningfully brighter than Frank Blue would.
Bathroom
Bathrooms are one of the few spaces where you're genuinely enclosed by the paint color, which makes the choice between these two more consequential. Fun Yellow reflects noticeably more light off the walls, making the space read more open than Frank Blue.
Front Door
A front door is a focal point — small color differences read clearly at this concentrated scale. The LRV gap is large enough that Fun Yellow will make the room feel meaningfully brighter than Frank Blue would.
Color Details
Frank Blue vs Fun Yellow Simulated Comparison
5 simulated room previews — drag the slider on each to see Frank Blue on one side and Fun Yellow on the other.
Digital color is approximate. These simulations are generated from the manufacturer's hex values and overlaid on grayscale room photos — your screen's calibration, brightness, and viewing angle all affect how they render. Before committing to either color, test physical samples in your own space under the light you actually live with.