Why Did My Hair Turn Blue When I Dyd It Brown? Unraveling the Mystery of Unexpected Hair Color
You reached for that box of rich, earthy brown dye, envisioning a warm, natural look. Instead, you're staring in the mirror at strands sporting an unexpected, and likely unwelcome, shade of blue. This can be a frustrating and confusing experience, but rest assured, there are logical reasons behind this hair color mishap. Understanding the science and art of hair dyeing can help you avoid this in the future and even potentially fix it.
The Science Behind the Blue: Understanding Underlying Pigments
Hair dye, especially brown, works by depositing artificial pigment onto or into your hair shaft. However, your natural hair color isn't just one single pigment; it's a complex interplay of undertones. For most people with darker hair, these underlying pigments lean towards red, orange, and yellow. When you lighten hair (even subtly for a brown dye to take hold), these natural undertones can become exposed.
The crucial element here is how brown dyes are formulated. Brown dyes are typically made by combining other colors, including blue, green, and red pigments. The goal is to neutralize the brassy, warm tones (reds and oranges) that appear when hair is lightened. If the brown dye isn't strong enough, or if your hair's underlying pigment is particularly strong and brassy, the blue tones in the dye can become more prominent than intended, leading to that blue hue.
Common Culprits Leading to Blue Hair:
- Previous Hair Treatments: If your hair has been previously bleached, highlighted, or dyed with lighter colors, it likely has lifted its natural underlying pigments. These exposed pigments can be anything from bright yellow to orange or even red. When you apply brown dye over this, especially if the brown dye has blue undertones to counteract the warmth, the blue can dominate if not balanced correctly.
- Incorrect Dye Formulation or Application: Not all brown dyes are created equal. Some may have a stronger blue base than others. If the dye was left on for too short a time, the pigments might not have had enough time to fully deposit and neutralize the underlying tones. Conversely, leaving it on too long can sometimes lead to an over-saturation of certain pigments.
- Hair Porosity: The porosity of your hair refers to its ability to absorb and retain moisture and color. If your hair is very porous (often due to damage or chemical treatments), it can soak up dye quickly and unevenly. This means it might absorb more of the blue pigment than intended, especially in areas that are more porous.
- Natural Undertones: Even if you haven't had previous treatments, your natural hair might have stronger underlying pigments than you realize. For example, someone with naturally dark, almost black hair might have a very strong red undertone. When this is exposed and then dyed brown with a blue base, the blue can show through.
- The "Ash" Factor: Many brown dyes that aim for a natural or neutral look contain ash tones. Ash shades are typically achieved with a higher concentration of blue and green pigments. If your hair's natural undertones are particularly yellow or brassy, the blue and green from an ash brown dye can neutralize the yellow, but if the balance is off, or your hair is more porous, the blue can become visible.
What to Do If Your Hair Turns Blue
Don't panic! While it's not the desired outcome, it's often fixable. The best course of action depends on the severity of the blue and the condition of your hair.
Option 1: Wash, Wash, Wash! Sometimes, a few shampoos can help to fade out the excess blue pigment. Use a clarifying shampoo, but be mindful that these can also strip your hair of moisture, so follow up with a deep conditioner.
Option 2: Color Remover (Use with Caution): A color remover can help lift the artificial dye out of your hair. However, these can be harsh and may reveal the underlying brassy tones even more. It's often best to have a professional assess if this is the right option for you.
Option 3: Re-Dyeing (Carefully): This is where things get tricky and professional help is highly recommended. If the blue is a slight tint, you might be able to correct it by using a brown dye with warmer undertones (like a neutral brown or one with red or gold pigments) to counteract the blue. However, applying another dye without professional advice can sometimes lead to more unpredictable results.
Option 4: Consult a Professional Stylist: This is almost always the safest and most effective solution. A professional colorist has the knowledge and tools to assess your hair's condition, identify the underlying pigments, and choose the right products and techniques to correct the color. They can use toners, specialized dyes, and color removers precisely to achieve the brown shade you originally wanted.
Preventing Future Blue Hair Mishaps
Prevention is key when it comes to hair dyeing. Here are some tips to avoid turning blue:
- Strand Test: Always, always, always do a strand test before applying any dye to your entire head. Apply the dye to a small, inconspicuous section of hair and wait the recommended processing time. This will show you exactly how the color will turn out on your hair.
- Understand Your Hair's Undertones: Before you buy a dye, consider what your hair's underlying pigments are likely to be. If you know your hair tends to get very brassy, you might need a brown dye with stronger neutralizing pigments.
- Choose the Right Dye for Your Hair: Different brands and shades of brown have different undertones. Read product descriptions carefully. If you're aiming for a natural brown, avoid dyes labeled "ash" unless you know your hair's undertones will require strong blue/green neutralization.
- Consider a Professional Consultation: If you're unsure about your hair's undertones or the best dye to use, a consultation with a professional stylist can save you a lot of heartache and money in the long run.
- Proper Application: Follow the instructions on the dye box precisely. Ensure even application and adhere to the recommended processing time.
While a blue tint might seem like a dye disaster, it's often a sign that the pigments in the dye and your hair's natural undertones didn't quite harmonize as expected. With a little understanding and the right approach, you can get your hair back to the beautiful brown you envisioned.
Frequently Asked Questions (FAQ)
Why did my brown hair dye turn my hair blue instead of brown?
This often happens because brown dyes are formulated with a mix of pigments, including blue, to counteract brassy red and yellow undertones. If your hair had strong yellow or orange undertones exposed (perhaps from previous lightening), and the brown dye wasn't strong enough to neutralize them completely, the blue pigments in the dye can become more visible, resulting in a blueish tint.
How can I fix my hair if it turned blue from brown dye?
You can try washing it with a clarifying shampoo to fade the color, or if it's a significant color change, you might need to use a color remover (with caution). The most reliable method is to consult a professional hairstylist who can expertly re-tone or re-dye your hair to the desired brown shade.
Is it normal for brown hair dye to have blue in it?
Yes, it is very common for brown hair dyes, especially those that aim for a natural or ash tone, to contain blue and green pigments. These are used to cancel out the unwanted warmth (reds and oranges) that can appear when hair is lightened or when dyeing over existing color.
What should I do if I have very porous hair and it turned blue?
Porous hair absorbs color more readily. If your porous hair turned blue, it likely absorbed more of the blue pigment than intended. You can try a gentle color remover designed for porous hair or, ideally, seek professional help. A stylist can assess the porosity and use a specialized formula to correct the color without further damaging your hair.
