What Does 13 * 4 Mean in Hair? Understanding the Number Code

Ever scrolled through an online store for wigs or extensions and seen a label like "13 * 4" or "6/613"? It looks like a math problem gone wrong. You might wonder if it refers to length, weight, or maybe a specific brand’s secret recipe. The short answer is: no. Those numbers are not random digits; they are a standardized language used by hair manufacturers worldwide.

Understanding this code is crucial if you want to avoid buying a shade that doesn’t match your natural hair or your desired look. In the world of Hair Color Codes is a numerical system used to identify specific shades and tones in hair products, every digit tells a story about pigment, base tone, and secondary highlights. Let’s break down what those numbers actually mean so you can shop with confidence.

The Universal Language of Hair Numbers

The hair industry uses a numeric scale to describe color. This system originated in Europe but has become the global standard for Human Hair Wigs is head coverings made from real human hair, often customized with specific color codes. The first number usually represents the base color-the dominant shade of the hair shaft. Subsequent numbers, often separated by slashes or asterisks, indicate secondary tones, highlights, or lowlights.

For example, a simple "1" means black, while "10" is the lightest natural blonde. If you see "5," that’s a medium brown. But things get more complex when you see combinations like "6/613." Here, "6" is dark blonde (the base), and "613" is a very light platinum blonde (the highlight). The slash indicates a mix or a transition between these two tones.

Decoding the Asterisk (*) in Hair Codes

You asked specifically about "13 * 4." In many contexts, especially in Asian and Middle Eastern hair markets, the asterisk acts as a separator similar to a slash. However, its placement can change the meaning slightly depending on the manufacturer. Generally, it separates the base color from the accent color.

Let’s look at the components:

• 13: In most standard charts, there isn’t a pure "13" as a base color because the natural scale typically goes up to 10 (lightest blonde) or sometimes 12 (platinum). However, some brands use "13" to denote a specific cool-toned ash blonde or a very light neutral blonde that sits between 10 and 12. Alternatively, in some regional systems, "13" might refer to a specific red-violet or deep burgundy tone, though this is less common in modern international standards.
• 4: This is universally recognized as Dark Brown.

So, "13 * 4" likely describes a hair piece with a Dark Brown base (if the order is reversed in some catalogs) or a Light/Ash Blonde base with Dark Brown roots or lowlights. Wait-let’s double-check the order. Usually, the first number is the root/base. If it’s "13 * 4," and 13 is a light ash blonde, then you have light hair with dark brown accents. This creates a dimensional, "grown-out" look.

However, there is a catch. Some manufacturers list the root color first, followed by the tip color. If "13" is indeed a light blonde and "4" is dark brown, this would be an ombre style starting light and going dark, which is rare. More commonly, it might be a typo for "4 * 13" (Dark Brown base with Light Blonde highlights) or "1B * 4" (Black base with Dark Brown). Always check the visual swatch!

Common Hair Color Chart Breakdown

To help you navigate, here is a simplified guide to the most common numbers you’ll encounter. Note that slight variations exist between brands like Luvme Hair is a popular brand known for high-quality human hair wigs and extensions versus generic suppliers.

Why "13" Is Confusing

The number 13 is the outlier here. In traditional European color charts, the scale stops at 10 or 12. When you see 13, it often falls into one of two categories:

1. Regional Variation: In some Chinese manufacturing hubs, 13 might be used to distinguish a cooler, ashier version of #10. While #10 is yellowish-blond, #13 could be silver-gray or ash-blond.
2. Fashion Colors: Sometimes, numbers above 10 are reserved for fantasy colors. For instance, 7 might be red, 8 purple, etc. But 13 being a fashion color is inconsistent across brands.

If you’re looking at a product labeled "13 * 4" and the image shows dark brown hair with subtle lighter strands, it’s safe to assume the "13" is a mislabeling or a proprietary code for a specific ash-tone highlight over a dark brown (#4) base. Always trust the photo over the number.

How to Match Your Hair Perfectly

Buying hair online without seeing it in person is risky. Here’s how to ensure "13 * 4" or any other code works for you:

• Check the Swatch Under Natural Light: Photos can be deceiving. Ask the seller for a video of the hair in daylight. Artificial lighting can make ash tones look gray or warm tones look orange.
• Compare to Your Roots: If you’re buying a wig, match the root color to your natural scalp hair. If you’re buying extensions, match the mid-lengths. A mismatch at the roots is obvious; a mismatch at the tips is less noticeable.
• Understand "Tone" vs. "Level": The first digit is the level (how light/dark). The second digit is the tone (warm/cool/neutral). For example, 4N is neutral dark brown, 4G is golden dark brown, and 4A is ash dark brown. If "13" implies an ash tone, it will pair well with cool skin tones.

Alternatives to Numeric Codes

If numbers confuse you, look for descriptive names. Many brands now offer both. Instead of "13 * 4," you might find "Ash Blonde Balayage on Dark Brown Base." This is clearer and less prone to interpretation errors. Brands like Unice Hair is a leading supplier of raw virgin hair with detailed color descriptions often provide both numeric and descriptive labels to help customers.

Another tip: if you’re unsure, buy a sample weft. Most reputable sellers offer small bundles for $5-$10. Hold them against your hair in front of a mirror. This small investment saves you from returning expensive full units.

Troubleshooting Common Mismatches

Did you receive "13 * 4" and it looks nothing like the picture?

• It’s Too Yellow: You may have received a #10 instead of #13. Use a purple shampoo to tone down the yellow.
• It’s Too Gray: The "ash" in #13 might be too strong. A gloss treatment with warm tones can add depth.
• The Contrast Is Too High: If the dark brown (#4) and light blonde (#13) clash, consider blending them with a professional dye job or using dry shampoo to soften the transition.

Remember, hair color is subjective. What looks "ashy" to one person might look "natural" to another. Your personal perception plays a huge role.