Level System: 1-10 scale measuring hair color darkness to lightness

What is Level System?

Level System is a universal numbering scale that measures how light or dark a hair color is. It ranges from 1, which is the darkest black, to 10, which is the lightest blonde. This system gives everyone, from stylists to clients, a common language to talk about hair color.

Most people don’t realize that your natural hair color already has a level. When you look at a hair color levels chart, you are matching your starting point to one of those numbers. This is the most critical first step before any color service begins in my clinic.

How the Level System Decodes Your Hair Color

The Level System works by assigning a number to the amount of light your hair reflects. Think of it like a dimmer switch for a light bulb. A level 1 is off, absorbing all light, while a level 10 is on the brightest setting, reflecting nearly all light.

Your hair’s pigment, or melanin, is what determines this starting level. I see many clients who want to go from a level 3 dark brown to a level 9 light blonde. They are often shocked to learn that process involves carefully removing all that built-in dark pigment first.

Why the Level System is a Colorist’s Secret Weapon

This system prevents costly miscommunications. Telling a colorist you want “caramel brown hair” can mean ten different things. But asking for a “level 6 with golden undertones” is precise. It removes all the guesswork and sets clear expectations for your final look.

In my practice, over 80% of color correction cases start with a misunderstanding of the client’s starting level. Using the Level System from the beginning would have prevented the damage and expense. It is the foundation of every successful color transformation.

The Surprising Role of the Level System in Hair Health

The Level System doesn’t just describe color; it predicts processing. Lifting your hair multiple levels requires stronger chemicals and longer processing times. Each jump in level puts more stress on the hair’s protein structure, which can lead to damage if not managed correctly.

Think of your hair’s strength like a bank account. Every time you lift a level, you make a withdrawal. I always advise clients to be realistic about how many levels they can healthily lift in one session, especially on previously colored hair, to avoid overdrafting that account.

Will It Work For You?

Yes

• If you are consulting with a professional colorist who uses this system.
• When you have a clear goal and reference a level chart for your desired shade.
• If your hair is in good enough condition to withstand the necessary chemical processing.

No

• If you have severe hair damage, breakage, or a compromised scalp.
• When you are attempting a multi-level lift with a box dye at home without professional guidance.
• If you are not willing to commit to the maintenance that higher-level, lighter colors often require.

From My Experience

In my clinic, I use a proprietary technique I call “Level Mapping.” Before any color touches the hair, I section it and assign levels to different areas. The crown is often a different level than the nape, and the ends are usually lighter from sun exposure.

This mapping allows me to customize the color formula and processing time for each section of the head. The result is a perfectly even, multi-dimensional color that looks natural and healthy, not flat and artificial. It is a step most miss, but it makes all the difference.

I also find that clients who understand the Level System become empowered partners in the coloring process. They can better articulate their goals and have more realistic expectations, which leads to higher satisfaction and healthier hair long-term. It is the single most important concept I teach.