A row of beautiful tubes can make colour selection feel urgent: a brighter yellow, a deeper blue, a more unusual red. Yet knowing how to choose oil paint colours is less about accumulating possibilities and more about identifying the pigments that will give you reliable control. A well-chosen palette should help you judge value, mix cleanly, adjust temperature and make the kinds of marks your subjects require.
The best starting palette is therefore not universal. A landscape painter working through muted greens will make different decisions from a portrait painter concerned with flesh, or an abstract painter building high-chroma passages. What does remain constant is the need to look beyond the colour printed on the tube.
Start with pigment, not the colour name
Colour names are useful shorthand, but they are not a technical description. Two paints called Yellow Ochre may use different pigments, have different undertones and behave differently in mixtures. The Colour Index pigment code, usually beginning with PB, PR, PY, PG, PBr or PW, gives more dependable information about what is in the paint.
Single-pigment colours are particularly useful while learning or refining a palette. They make mixing easier to predict because you can observe the character of one pigment at a time. A single-pigment blue mixed with a single-pigment yellow will tell you far more about each colour than a pre-mixed convenience green can.
This does not mean multi-pigment colours are inherently inferior. They can be beautiful, useful and carefully formulated. But if your aim is a coherent mixing palette, begin with colours whose composition is clear. You will soon recognise which pigments produce the greys, neutrals and secondaries you actually want.
Read the practical properties on the tube
Alongside pigment composition, assess transparency or opacity, lightfastness, tinting strength and drying behaviour. These properties influence how a paint performs as much as its hue does.
Transparent colours are valuable for glazing and for preserving luminosity in mixtures. Opaque colours cover readily and can establish decisive, solid passages. Neither quality is better. The question is whether the paint supports your intended method. A painter using thin, layered glazes may rely heavily on transparent earths and lakes; one building direct, opaque form may favour stronger covering colours.
Tinting strength deserves attention when choosing intense modern organic pigments and phthalocyanine colours. A tiny amount can dominate a mixture. This is an advantage when you need clean, powerful colour, but it can make subtle adjustment harder until you understand the pigment. Use such colours sparingly at first and learn their effect with white and with their natural complements.
Choose colour by value before hue
Many palette problems are presented as problems of colour when they are really problems of value. A painting can survive an unexpected hue shift more readily than an inaccurate light-dark structure. Before adding another tube, ask whether your existing palette gives you convincing darks, workable middle values and clean lights.
White is central to this decision. It is not merely a lightener. Different whites vary in opacity, warmth, body and influence on mixtures. Titanium White provides strong covering power and substantial tinting strength. Zinc White is more transparent and generally used with caution in oils because of concerns around brittle paint films. Lead White, where appropriate for an artist's practice and handled with full awareness of its hazards, has a distinct handling quality and flexibility valued by many traditional painters.
For many painters, one dependable white and a disciplined approach to value will do more than several additional bright colours. Mix a value scale from a chosen dark to white, then introduce colour into it. This simple exercise quickly reveals whether a pigment becomes chalky, unexpectedly cool or excessively powerful as it is lightened.
Do not assume black is your only dark
Black can be indispensable, but it is not the only route to depth. Some blacks cool a mixture markedly; others appear warmer or more neutral. In many subjects, a dark made from complementary colours gives a livelier, more responsive alternative. Ultramarine Blue and a warm earth, for example, can produce a range of dark neutrals that shifts with proportion.
A restrained palette benefits from at least one dark-making strategy that you have tested. It might be a black, a dark earth, a complementary mixture or a combination of these. The aim is not to avoid black as a rule, but to understand its colour bias and use it deliberately.
Build around warm and cool relationships
Terms such as warm and cool are relative rather than fixed. A blue may appear warm beside a greener blue and cool beside a violet. Still, choosing a useful warm and cool bias among your principal colours gives a compact palette greater range.
For a traditional mixing system, consider selecting a warmer and cooler version of yellow, red and blue. A warm yellow may lean towards orange, while a cool yellow leans towards green. A warm red may lean orange; a cool red may lean violet. Likewise, one blue can favour green and another violet. These biases matter because every mixture moves towards the undertones of its components.
You need not buy six high-chroma primaries immediately. An earth yellow, a warm red earth and a blue may be closer to the subjects you paint than a full spectrum of intense colours. However, when clean violets, greens or oranges are essential, carefully chosen opposing biases reduce the muddiness caused by mixing pigments that pull in conflicting directions.
Include earth colours for structure, not as an afterthought
Earth pigments are often the working foundation of an oil palette. Yellow ochres, raw and burnt siennas, and raw and burnt umbers offer restrained chroma, natural temperature variation and excellent utility in portraits, landscapes and still life.
Their value is not limited to painting brown objects. Earth colours mute stronger pigments without immediately turning them grey, establish warm or cool neutrals, and help relate saturated notes to the quieter passages around them. They are also efficient for studies, underpainting and rapid decisions about light and shadow.
Choose earth colours by observing their individual bias. One burnt sienna may be more orange, another more red; one umber may feel greenish, another warm and reddish. Make small swatches and mixtures rather than trusting the cap colour. The pigment's actual behaviour on your ground is the information that matters.
Test mixtures before committing to a larger palette
A palette becomes personal through use, not through a prescribed tube list. Before purchasing a specialist colour, test what it contributes that you cannot already mix. Paint a small chart with the candidate colour, white, a dark, and the nearest colours already on your palette. Then make a few mixtures relevant to your work: a sky neutral, a flesh halftone, a foliage green, a shadow or the particular violet you repeatedly seek.
This is where a colour comparison resource or a mixing tool can save waste, but physical tests remain decisive. Oil paint's gloss, body and transparency alter your perception. Allow swatches to dry, particularly if you are comparing colours for glazing, scumbling or close colour matching.
Keep the charts. Over time, they become a record of your own visual language and a much better buying guide than a generic list of essential colours.
Think about permanence, safety and studio practice
Professional colour selection includes the life of the painting. Choose pigments with sound lightfastness for work intended to endure, especially for passages exposed to strong light or made with delicate tints. This is particularly relevant with some historical lakes and exceptionally bright colours, where pigment-specific information is more useful than broad assumptions about a colour family.
Your studio practice also matters. If you work in a shared space, teach, have particular health requirements or prefer animal-free materials, make this part of the selection process rather than an afterthought. Clearly identified non-toxic and vegan options allow you to build a palette that is consistent with how you work. Good practice still requires attention to ventilation, skin contact and responsible disposal of paint and solvent residues.
At Michael Harding, pigment information is intended to support precisely this kind of informed choice: not simply choosing a red or blue, but choosing the particular material qualities that serve a painter's method.
Let the subject set the limits
A limited palette is not a test of virtue. It is a way to establish relationships quickly and learn what each pigment can do. Once you can mix the greys, lights and accents needed for a subject, additions should be purposeful.
If your work calls for the electric green of new leaves, a granular-looking mineral blue effect, a transparent crimson glaze or a dense opaque highlight, select the pigment that makes that result possible. If it does not, leave it out. The most useful oil palette is not the most comprehensive one. It is the one whose colours you know well enough to make each decision on the canvas feel intentional.