NEW! Launching Blue Food Coloring from Gardenia: The Natural Blue That Holds Its Color

Introducing our NEW natural blue food coloring made from gardenia. A beautiful blue — clean-label, vegan, and allergen-free.

See Gardenia Blue in Action →

Why You'll Love It

• Holds up beautifully across both high and low pH

• Stays true and vibrant even with heat

• Resists fading under bright UV light and direct sun

Compare Gardenia Blue vs. Spirulina Blue

Like spirulina, our gardenia blue produces a beautiful natural blue — with the added advantage of holding up through heat, pH, and light.

• Gardenia Blue Food Color

• Blue Food Coloring, Natural (Made from Spirulina)

From our Founder, The Flavor Guy:

"We’ve always believed that gardenia blue was a far superior blue to spirulina. Made from gardenia, you can get a beautiful blue, that's all natural, holds up to high pH, low pH, does well with heat - even with bright UV lights on or sitting out in the sun..."

Explore Gardenia Blue's Advantages →

If you've been searching for a blue food coloring that's clean-label, plant-based, and stable enough for real production — gardenia blue is it. Most natural blues fade under heat, shift in acidic recipes, or wash out under UV light. Gardenia blue is different, and it's now FDA-approved.

Here's what beverage formulators and candy producers need to know.

What Is Gardenia Blue?

Gardenia blue is a natural blue food coloring derived from gardenia. It's plant-based, vegan, and free from artificial colorants — and it produces the kind of vivid, saturated blue that most people assume can only come from a synthetic blue food dye like FD&C Blue No. 1 or 2.

In July 2025, the FDA approved gardenia blue as a color additive following a formal review of toxicology and dietary exposure data. That makes it one of the very few naturally derived blues backed by a full FDA regulatory review rather than just a clean-label claim.

Blue Food Coloring — Without the Synthetic Dyes

For brands reformulating away from petroleum-based synthetic dyes, our Gardenia Food Dye is a direct clean-label replacement. As a natural blue food coloring option that's also plant-derived, Our gardenia blue delivers bold, true color with no artificial colorants  — supporting clean ingredient lists without sacrificing the visual impact consumers expect from a beautiful blue product.

The shade you get depends on concentration and your base:

• Light blue food coloring effect — lower concentrations produce soft, pastel tones

• Deep, stable blue — mid-range, potent concentrations that deliver deep hues

• Dark blue food coloring effect — higher concentrations push into deep, denim-like tones

Why Stability Sets Gardenia Blue Apart

The biggest frustration with natural blue food dye is stability. Spirulina — the other main natural blue — is more sensitive to heat, light, and pH. Gardenia blue behaves differently across all three:

• Heat — holds its color through processing temperatures where spirulina fades, making it the better natural blue food coloring for candy production

• pH — stable at both high and low acidity, so it works reliably in low-pH drinks like sports drinks

• UV light and sunlight — resists fading under bright UV lights and direct sun, a property most blue food coloring natural options cannot claim

For products that face any combination of heat, acidity, or light exposure — from production through shelf — gardenia blue is simply the more dependable natural blue food colorant.

Gardenia Blue vs. Spirulina: Which Natural Blue Food Dye Is Right for You?

Gardenia and spirulina are the two main naturally blue food options, and they perform differently:

Both are plant-based alternatives to synthetic blue food coloring dye, but gardenia's stability is the reason many producers prefer it for applications involving processing heat, acidic formulas, or products displayed under bright light.

Where Is Gardenia Blue Approved?

The FDA approval covers the following applications, for use at levels consistent with good manufacturing practice:

• Sports drinks

• Flavored and enhanced non-carbonated waters

• Fruit drinks and ades

• Ready-to-drink teas

• Hard candy

• Soft candy

For beverage formulators, this natural blue food color holds up in low-pH environments and resists fading under UV exposure — two of the biggest challenges for any blue food coloring in drink applications. For candy and confectionery producers, its heat tolerance makes it more reliable than spirulina-based blues through production.

What Makes Gardenia Blue a Clean-Label Choice?

As the FDA phases out synthetic dyes, brands need a naturally blue food coloring that can do the same visual job as FD&C Blue No. 1 and 2 — without the artificial additives. Gardenia blue offers:

• Plant-derived and vegan

• No synthetic dyes or artificial colorants

• FDA-approved status backed by formal regulatory review

• Stability through heat, acidity, and light that most natural blue food colorants can't match

The result is a beautiful  natural blue food coloring for clean-label positioning, and stable enough for real-world production.

Available for Test Batches Through Commercial Bulk

Nature's Flavors' blue food coloring made from gardenia is available with no minimum order quantity — from a single test batch through commercial production volumes. 

Concentration adjustments let you dial in everything from light blue food coloring tones to deep, saturated blues from the same product.