If you’re considering using Dulux Mount Buller in your home, this blog post is for you. Today, we’ll explore its LRV, undertone, and the best white paints to pair with it for a cohesive, timeless look—whether you’re building or renovating.

I’m Bozica, a qualified interior designer and colour specialist. I help homeowners make smart, confident colour selections that work with their fixed elements and lighting—not against them. Let’s dive into Mount Buller and see if this colour is the right fit for your space.

🎨 What is Dulux Mount Buller?

• LRV (Light Reflectance Value): 71

• Undertone: Grey with a green base

• Type: Soft, warm neutral

Mount Buller is a beautiful light neutral that reflects plenty of light (thanks to its high LRV of 71), but still has enough depth to add softness and character to your space. It’s ideal for open-plan living areas with lots of natural light.

🧪 How to Test This Colour Properly

To test Mount Buller (or any paint colour), always follow these key rules:

• Use A4-size samples, not tiny swatches.

• Test vertically on the wall—never on the floor.

• Always compare against Dulux Vivid White, a pure white with no undertone.

Comparing colours side-by-side is the best way to see the true undertone, contrast, and whether a paint will feel warm or cool in your home.

🧱 Understanding Undertones

The secret to a great paint colour selection is undertone matching. Mount Buller has a grey-green undertone—one of the most flexible and timeless neutral undertones.

However, you must check how it interacts with:

• Kitchen cabinets

• Stone benchtops

• Floor tiles

• Bathroom materials

• Window frames

These fixed elements are the starting point of your colour scheme. If your current materials have clashing undertones (e.g., violet or yellow), Mount Buller may not be the right fit.

✅ Best White Paints to Pair with Dulux Mount Buller

Depending on your space and preferences, here are the top white paints that work beautifully with Mount Buller:

1. Dulux Vivid White

A pure white with no undertone, ideal if you want flexibility. It offers crisp contrast, especially for doors, skirtings, architraves, and ceilings.

2. Dulux White Polar Quarter

A warm white that blends softly with Mount Buller’s green base, creating a subtle contrast and a calming feel.

3. Dulux Casper White Quarter (My Favourite!)

This warm neutral white pairs effortlessly with grey-green undertones and adds gentle depth. It’s a popular choice for modern and classic homes alike.

⚠️ Important: Always test your whites against your actual fixed elements before committing. What works in one home may not work in another.

🌞 How Mount Buller Reacts to Natural Light

Paint colours change depending on light direction. Here’s how Mount Buller performs in different rooms:

• North-facing rooms: Appears soft, warm, and glowing throughout the day

• South-facing rooms: Looks cooler, and the green-grey undertone becomes more prominent

• East-facing rooms: Warm and bright in the morning, duller by afternoon

• West-facing rooms: Gorgeous warmth in the afternoon sun

💡 Add artificial lighting in darker areas to bring out the best in this colour.

🎁 Free Downloads to Help You Choose the Right White

Still unsure? Before you even pick up a brush, make sure you actually understand how to choose white paint and neutrals for your home. I’ve created two free downloads that will walk you through:

📌 Read This Before You Renovate or Build
📌 Understand the 4 Types of White + How to Choose the Right One for Your Home

They’ll help you avoid costly mistakes and feel more confident in your decision-making.

🎓 Want Step-by-Step Colour Selection Help?

If you're ready to learn how to choose white paint, test undertones, and create a full neutral colour scheme for your home, then join my online course. It's designed for homeowners who want to get it right the first time—without needing a designer.

👉 Check out the course here
It’s packed with visual guides, video tutorials, and includes access to a private Facebook group where you can ask me questions directly.