Pale, low-saturation colours with a light or pale tone depth tend to read as brighter and more open than darker or more saturated ones.
Filtered for pale or light tone depth with muted saturation — high reflectance, low visual weight.
A wall's contribution to brightness is the share of light it sends back into the room, which for paint is close to its light reflectance value. Pale colours return most of the light that reaches them, so light that bounces off one wall goes on to light the others; a mid-tone returns perhaps half as much and the room's corners fall off quickly. Low saturation matters too: a pale but strongly coloured wall tints every bounce, and a room full of tinted light reads as coloured rather than bright.
What the filter selected: 44 of the catalogue’s colours pass this test. Their relative luminance — roughly the share of light a surface in that colour would reflect — runs from 35% to 100%, with a median of 72%. 12 lean warm and 8 lean cool.
Cream
neutral · pale
Beige
neutral · pale
Greige
neutral · light
Pink
pink · pale
Blush Pink
pink · pale
Pastel Pink
pink · pale
Peach
orange · pale
Butter Yellow
yellow · pale
Mint Green
green · light
Sky Blue
blue · light
Powder Blue
blue · light
Duck Egg Blue
blue · light
Undertone caution: two colours in the same family can still read very differently once on a large surface, depending on their undertone — check against your existing flooring, furniture and fittings, not the swatch alone.
Lighting caveat: a colour can look noticeably warmer or cooler depending on natural and artificial light through the day — see the lighting guide for what specifically changes and why.
Finish caveat: matt, eggshell and gloss finishes reflect light differently, which can make the same colour read lighter, darker or more saturated depending on the finish chosen.
Always view a physical sample in the actual room, at different times of day, before committing to a large surface.