Valspar Sonic Plum#77508B · LRV 11.4
Sonic Plum reads as a violet / cool — dark — high drama, needs strong daylight or warm bulbs. The notes below cover the spec, what Valspar 4002-10C actually looks like under different light, and the closest matches at competing US brands.
Color spec
| Brand | Valspar |
| Name | Sonic Plum |
| SKU | 4002-10C |
| Hex | #77508B |
| RGB | 119, 80, 139 |
| HSL | 280°, 27%, 43% |
| LRV | 11.4 |
| Undertone | violet / cool |
| Family | Purple |
About Valspar Sonic Plum
With an LRV of 11.4, Sonic Plum is a deep, dramatic shade. It soaks up light in north-facing rooms and looks richest where strong daylight hits it. Its violet undertone is the part to watch: it gets picked up by whatever sits next to it, so test it against your trim, floor and the room's main light before committing. Warm artificial light softens it; cool LED can make it look flat, so match your bulbs to the mood you want.
Sonic Plum works best as a feature — a single wall, built-ins, a study or dining room — rather than wrapping a whole bright space. Purples range from restful (bedrooms) to dramatic (powder rooms) depending on depth.
Kompozit alternative
The closest hex in the Kompozit deck, ranked by ΔE2000 (perceptual color difference). ΔE under 2 is indistinguishable to most eyes; under 5 is a very close visual match.
Closest matches at every US brand
9 brands · top 5 each5 closest matches per brand by ΔE2000, computed against each brand's full deck. Tap any swatch for its full single-color spec; tap the brand title to browse all purple from that brand.
PPG / Glidden
Sherwin-Williams
Dunn-Edwards
Behr
Benjamin Moore
Clare
Farrow & Ball
Magnolia Home
Similar Valspar colors
closest in the Valspar deckThe nearest shades to Sonic Plum within Valspar's own range, ranked by perceptual color distance — useful when you want the same look a touch lighter, darker, or warmer.
Coordinated palette
Generated by hue-rotating #77508B in HSL space. Pair Sonic Plum with one accent and one neutral — the swatches below are starting points, not final picks.
Accessibility (WCAG contrast)
WCAG 2.1: AA = 4.5:1 normal text · AA Large = 3:1 large text · AAA = 7:1 normal text.