Should You Go Warm or Cool Blonde? A Guide by Undertone
A client once came in with a blonde she loved on Pinterest and hated on herself. The color itself wasn't the problem. It was warm honey blonde on someone with a cool undertone, and no amount of styling was going to fix that mismatch.
Why does the same blonde look warm on one person and ashy on another?
Blonde isn't one shade any more than red or brown is. Warm blondes carry gold, honey, or caramel underneath them. Cool blondes carry ash, beige, or platinum. Two blondes can sit at the exact same lightness level and still read completely differently once they're next to skin, for the same reason a warm and cool foundation can share a shade number and still look wrong.
How do you know if you need warm or cool blonde?
The same undertone that decides your best makeup shades decides this too. If you already know you're warm or cool from a color analysis, that's your starting point for blonde as well. Warm undertones generally read better in honey, caramel, and golden blonde. Cool undertones generally read better in ash, beige, and platinum.
What happens if you pick the wrong temperature of blonde?
A warm blonde on cool skin tends to look brassy or yellow against the face, even right after a fresh color appointment. A cool ash blonde on warm skin can go the other way, reading gray or washed out rather than expensive. Neither is a styling problem. It's the same temperature mismatch that shows up in foundation, just on hair instead of skin.
Does your natural hair color affect which blonde works, or is it only about skin?
Both matter, but for different reasons. Skin undertone decides which blonde will flatter you. Your natural hair level and its own undertone decide how much work it takes a colorist to get there, since a naturally warm base often needs extra toning to sit truly ash. Worth mentioning both to your colorist rather than just bringing in a photo.
How do you actually test before committing to a full color change?
Hold a few real swatches against your hairline in daylight, the same way we do in a session, rather than judging from a screen. A photo online was shot under different lighting on different hair, so it tells you less than five minutes with a physical swatch against your own skin. Worth doing that check in Bangkok's actual daylight too, since it reads differently than salon lighting does.
Explore more from Soori Studio
You were meant to shine, as you are.