Ref. #EDFF21 · 1016
Sulfur Yellow
90%LRV Value
Cool (Green)Undertone
Sulfur Yellow Technical Profile
What color is Sulfur Yellow? It's a very light cool yellow with the hex code #EDFF21. Sulfur Yellow has a cool (green) undertone, which affects how it pairs with trim, flooring, and adjacent wall colors. With a Light Reflectance Value of 90, Sulfur Yellow reflects a generous amount of light, making it well-suited for north-facing rooms or smaller spaces that benefit from extra brightness. Pair it with crisp whites like Pure White for trim, oak or maple woods, and brass hardware. Navy or deep teal accents balance the brightness without competing for attention. Under 2700K warm bulbs Sulfur Yellow reads more golden or buttery. Under 4000K daylight bulbs it stays truer to the chip, though saturated yellows can edge toward green in mixed light.
Colors Similar to Sulfur Yellow
Closest digital match based on color values. Always verify with physical samples.
Recommended Pairings
Colors That Work With Sulfur Yellow
Timeless pairing with clean white trim and a tonal accent wall
Side Walls
Sulfur Yellow
#EDFF21
Accent Wall
Tonal Shift
A warm shift that adds depth without clashing.
#8FD65C
Trim & Molding
Pure White
Crisp white trim for a clean, traditional look.
#FFFFFF
Color Palettes for Sulfur Yellow
Color harmonies based on color theory — each swatch links to the closest matching paint.
Opposite on the color wheel — creates vibrant contrast
Sulfur Yellow Room Palettes
Color schemes built around this color — each swatch links to the closest matching paint.
Warm & Inviting
Warm tones with cozy appeal — welcoming and comfortable
Cool & Calm
Cool hues with soft contrast — serene and restful
Bold Contrast
Complementary hues with punch — dynamic and striking
Similar RAL Colors
Other RAL colors close to Sulfur Yellow.
More yellow colors from other brands
Cross-brand colors in the yellow family — useful when you want a similar look from a different brand.
Sulfur Yellow — Frequently Asked Questions
What undertone does Sulfur Yellow have?
Sulfur Yellow by RAL has a cool (green) undertone and belongs to the yellow color family.
What colors match Sulfur Yellow from other brands?
The closest matches are Citron by Behr (#DFF652), Grape Green by Behr (#C9E72F), Lime Tree by Behr (#D4E449). Always verify with physical samples.
What is the LRV of Sulfur Yellow?
Sulfur Yellow has an LRV of 89.6, where 0 is pure black and 100 is pure white.
Explore More with Sulfur Yellow
Related Reading
How to Match Paint Colors Across Brands
The science behind Delta E and CIEDE2000 — find a Behr equivalent of any Sherwin-Williams shade, or a Benjamin Moore alternative when your store is out of stock.
Understanding Paint Color Undertones
Why Sulfur Yellow's cool (green) undertone matters more than its surface color — and how to read undertones in any paint chip.