Chart / 7000 series / RAL 7023 Concrete grey
RAL 7023 Concrete grey
A mid-toned, muted yellow green on screen. First published on this chart 23 April 2013.
This swatch is a screen approximation of the colour. Check a physical RAL fan deck or a painted sample of the actual product before you order or match anything.
| Hex (sRGB) | #818479 |
|---|---|
| RGB | 129, 132, 121 |
| HSL | 76°, 4%, 50% |
| CMYK (naive) | 2, 0, 8, 48 |
| CIE Lab (from sRGB) | 54.6, -3.2, 5.5 |
| Relative luminance | 22.6% |
| Text contrast | white text 3.8:1, black text 5.5:1 |
Values are derived from the approximate hex above. CMYK is a simple conversion, not a print recipe: printers convert through their own profiles. Luminance is a screen figure, not a measured light reflectance value (LRV) from a paint data sheet.
How RAL 7023 reads
Like freshly poured concrete, concrete grey is a mid grey with a warm, slightly green cast. It sits close to RAL 7033 cement grey but looks a touch lighter and less green.
Where it turns up
It suits render, garden walls, machinery and outdoor furniture. If you are matching existing concrete, hold a sample against it, as real concrete varies a lot.
Ordering RAL 7023 in paint or powder
Quote the number, not just the name: say "RAL Classic 7023" and add the gloss level, the product type (wall paint, metal paint, powder, aerosol) and the surface. The same number mixed by two makers, or in two gloss levels, can look slightly different, so keep a whole job in one batch and look at a sample in daylight first. The paint counter guide covers the questions to ask.