As summer gives way to autumn, clients often want a change without completely reinventing their colour. Bright blondes become softer and more dimensional, brunettes gain richness and depth, and warm, expensive-looking tones begin to take centre stage.
For professional colourists, September is the ideal time to introduce transitional hair colour: shades that bridge the gap between summer and the deeper, richer palettes of autumn and winter.
From glossy brunette and dimensional balayage to lived-in blonde, these four looks created using OSMO IKON Professional Hair Colour demonstrate how strategic toning, lowlighting and placement can transform existing colour while maintaining dimension.
Autumn Hair Colour Trends: 4 Transitional Formulas for the Season Ahead
1. Rich, Glossy Brunette with Seamless Dimension
Created by @iestyngriffithshair
One of the biggest opportunities for autumn is taking lighter, sun-kissed hair into a richer brunette direction without losing dimension. Rather than creating one flat block colour, this transformation combines an all-over tint with carefully selected extensions to produce a seamless, expensive-looking brunette balayage effect.
THE FORMULA
All-over colour:
OSMO IKON Permanent Colour 6.0 + 6.01, mixed 3:1 with 10 Vol Cream Developer.
Colour protection:
OSMO IKON CHROMAPLEX used throughout the service.
The 6.0 and 6.01 combination creates a beautifully balanced brunette base, adding depth while keeping the finished result natural and wearable. The darker base is then complemented by lighter tonal variation through the lengths, giving the hair movement rather than allowing the deeper autumn shade to appear heavy.
This is an ideal approach for clients looking to transition from warmer or lighter summer hair into glossy autumn brunette hair while maintaining softness.
Why it works for autumn: deeper colour instantly gives hair a richer seasonal feel, while the remaining tonal variation keeps the result dimensional and modern.
2. Deep Brunette with Soft Golden Ends
Created by @jakenugent.hair
Going darker for autumn doesn't necessarily mean taking every section of the hair to the same depth. Keeping controlled warmth through the ends can make a deeper root feel softer, more flattering and much easier to transition into.
Roots:
OSMO IKON Permanent Colour 6.0 + 10 Vol Cream Developer.
Ends:
OSMO IKON 6.0 + 8.003 + 5 Vol Cream Developer.
This formula is a great example of creating a multi-tonal brunette using different depths through the root and lengths. The level 6 root establishes a rich brunette foundation, while 8.003 through the ends introduces a softer golden influence.
The result is particularly relevant for clients moving away from brighter summer colour but who aren't ready to lose their lighter pieces altogether.
Instead of covering existing dimension, colourists can use it to their advantage – refining warmth and introducing richer tones to create a brunette that feels completely at home in autumn.
THE FORMULA
3. Brunette Balayage with a Statement Money Piece
Created by @iestyngriffithshair
For clients who love their brunette but still want brightness around the face, a money piece and glossing service can deliver a noticeable seasonal refresh without requiring a full-head lightening service.
Here, strategically placed brightness is combined with a rich brunette base and multi-tonal lengths.
Money piece:
OSMO IKON Blonde Elevation + 20 Vol Cream Developer.
Root gloss:
OSMO IKON Glossy Gloss Semi-Permanent Colour 4.0 + 6.1.
Lengths:
Glossy Gloss 8.73 + 9.0 + 6.31, mixed 1:1 with 5 Vol Cream Developer.
The contrasting money piece keeps brightness concentrated around the face, while Glossy Gloss Semi-Permanent Colour is used to refine the remaining colour and create a polished, high-shine finish.
This type of service is particularly valuable during the transition into autumn because it allows colourists to shift the overall tone without unnecessarily lightening the entire head. Existing balayage can instead be glossed into richer beige, brunette and golden tones.
For clients, it's a noticeable transformation. For colourists, it's also an opportunity to introduce a glossing service that can become part of their ongoing colour maintenance.
THE FORMULA
4. Soft, Lived-In Autumn Balayage
Created by @jakenugent.hair
Blonde isn't going anywhere for autumn – but the way we wear it changes.
As the season moves towards autumn and winter, ultra-bright summer blonde can be softened with beige, taupe and neutral tones, creating a more lived-in finish with greater depth.
For this dimensional balayage, the hair was lightened strategically before being toned into a soft, muted blonde.
Balayage:
OSMO IKON White Powerlift Bleach + Freehand Clay Additive + 20 Vol Cream Developer.
Toner:
OSMO IKON 7.1 + 7.003.
The Freehand Clay Additive is particularly suited to freehand balayage techniques, helping colourists create controlled placement while White Powerlift Bleach provides the lifting foundation required for brighter pieces.
Finishing with 7.1 and 7.003 balances cooler and softer golden influences, creating a sophisticated neutral result rather than an overly bright summer blonde.
It's an ideal example of autumn blonde hair colour: dimensional, understated and designed to grow out beautifully.
THE FORMULA
The Autumn Colour Shift: Think Richer, Not Necessarily Darker
The move into autumn and winter doesn't have to mean taking every client several levels darker. Some of the most wearable seasonal transformations come from simply changing the balance of depth, warmth and contrast.
A bright balayage can become a muted beige blonde. A warm brunette can be given a deeper, glossier base. Existing blonde can become strategically placed dimension. And a face-framing money piece can retain just enough brightness to stop an autumn brunette feeling too heavy.
The OSMO IKON professional colour portfolio gives colourists the flexibility to approach these transformations as complete colour changes or more subtle seasonal updates.
What Hair Colours Are Trending for Autumn?
For autumn and winter, expect clients to increasingly request shades that feel richer, softer and more dimensional rather than simply "dark".
Think:
Expensive brunette with subtle ribbons of lighter colour.
Chocolate and deep brunette with high-shine finishes.
Beige and neutral balayage replacing very bright summer blonde.
Golden brunette and bronde for clients who want warmth without going too dark.
Rooted blondes with softer contrast and a more lived-in finish.
Face-framing money pieces paired with deeper roots and dimensional lengths.
The common thread is dimension. Maintaining carefully placed light and tonal variation can make deeper autumn colour feel luxurious rather than flat.
Create Your Clients' Next Seasonal Shade with OSMO IKON
September is the perfect point to start the conversation with clients about where they want their colour to go next.
Rather than waiting for them to ask to "go darker", use their existing summer colour as the starting point. Consider where depth can be introduced, which lighter pieces are worth preserving and how a professional gloss or toner could shift the overall palette towards autumn.
Whether you're creating rich brunette hair, dimensional balayage, lived-in blonde or a glossy seasonal colour refresh, OSMO IKON Professional Hair Colour gives colourists a versatile portfolio for creating bespoke results behind the chair.