O'Reilly Green
Benjamin Moore · 555
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The Analysis
O'Reilly Green is a high-LRV (76.04) colour, meaning it reflects a significant amount of light, which helps smaller or dim rooms feel much more open and airy. Because it is a light, yellow-leaning green, it prevents a space from feeling cold and instead makes it feel crisp and refreshed.
This colour works best as a main wall colour in casual living spaces or kitchens where you want to maintain a light, neutral-adjacent feel. It acts as a versatile backdrop that isn't as stark as white, providing just enough pigment to define the room's boundaries.
LRV 76History & Origin
This is a fresh, modern take on botanical palettes rather than a specific period piece. It feels contemporary and light, fitting well into modern homes that prioritize brightness and connection to nature.
How to Use It
It pairs beautifully with warm wood tones like oak or walnut, which ground the light green. For fixtures, go with matte black for a modern contrast or unlacquered brass to lean into a more organic, earthy aesthetic.
The Mood
Living with this shade feels clean and revitalizing without being overly stimulating. It brings a sense of outdoor freshness inside, making it an excellent choice for rooms where you want a calm but positive energy.
Colour harmonies
Complementary
Opposite on the colour wheel — bold, high-contrast pairings. Use for a feature wall or furniture you want to command attention.
Analogous
Neighbouring hues — cohesive and calm, great for layered schemes that feel collected rather than matched.
Split complementary
Near-opposites for strong contrast with a little less tension than a pure complement. A favourite of interior designers.
Triadic
Three evenly spaced hues — balanced, vibrant, and versatile. Keep one dominant and use the others sparingly.
Tetradic (square)
Four hues in a square on the wheel — rich, dynamic palettes. Best when one colour leads and the others accent.
Monochromatic
Dark, mid, and light steps on the same hue — a failsafe gradient for trim, walls, and accents without shifting colour family.
Add harmony palette to a room
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Brand Matches
Perceptually similar colours from across all brands in our database.
Lighting
See how this colour shifts across natural and artificial light conditions.
- Natural
- Morning
- Afternoon
- Evening
- Overcast
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