Williamsburg Artist Oil Colour Permanent Yellow Medium 150 ml — Semi-Opaque, Lightfast PY74/PY65

Williamsburg Artist Oil Colours Permanent Yellow Medium is a professional-grade, semi-opaque oil paint in a 150 ml tube, delivering a bright, bus-yellow hue with excellent lightfastness for fine art and illustration.

This 150 ml tube of Permanent Yellow Medium from Williamsburg offers artists a vivid arylide yellow that resembles the classic school-bus and taxi tone while providing professional handling and permanence. Formulated with PY 74 and PY 65 pigments, the paint is finely ground and made in the USA by an experienced, employee-owned company. It balances strong colour intensity with a semi-opaque body, making it versatile for both opaque passages and glazed layers.

How does this yellow perform on the palette and in mixes?

Permanent Yellow Medium blends cleanly with other oils and keeps its chroma when mixed, offering predictable mixing behavior for bright greens and warm oranges. Its very fine grind gives smooth strokes and reliable colour release from the brush.

• High tinting strength for vivid mixtures
• Semi-opaque body—good for both covering and layering
• Very fine grind ensures creamy, even application
• Compatible with standard oil mediums and solvents

Will this colour last and resist fading over time?

The pigment combination has ASTM Lightfastness rating 1 (Excellent), indicating strong resistance to fading under normal display conditions. Proper varnishing and framing will further protect your work from environmental effects.

• ASTM Lightfastness 1—excellent permanence
• Pigments PY 74 and PY 65 known for stable performance
• Made with archival-quality oils and binders

What handling characteristics should I expect when painting?

Expect a buttery, controllable consistency that retains brush marks and responds well to both loaded-brush and subtle glazing techniques. The semi-opaque nature helps cover underlying tones while still working well in transparent layers when thinned.

• Buttery body for smooth brushwork
• Maintains colour saturation when thinned with medium
• Dries to a durable, workable film typical of artist oils

How does this tube fit into a professional studio workflow?

The 150 ml size is suited for frequent use without constant restocking, making it practical for studio projects and plein air sessions where a reliable warm yellow is needed. Williamsburg’s handmade quality gives consistent batches for predictable results across multiple paintings.

• 150 ml tube—ample volume for large works or repeated use
• Consistent batch quality from an experienced manufacturer
• Made in the USA by an employee-owned company with 40+ years' experience

Who is this for? Artists who need a dependable, vibrant arylide yellow that combines strong tinting power with archival permanence will find this Williamsburg tube useful. It’s ideal for painters working in oil who want a bright, traffic-bus yellow for landscapes, commercial illustration, portrait accents, or mixed-media studio work, and for those who value finely ground, handmade paint from a seasoned manufacturer.

• Similar to yellows used for school buses and taxis
• ASTM Lightfastness 1 (Excellent); Semi-Opaque; Pigments: PY 74 and PY 65; Grind: Very Fine
• Vibrant colours formulated to enhance pigment-specific luminosity
• Handmade quality—professional-grade consistency
• Made in the USA with globally sourced materials by an employee-owned company with more than 40 years' experience