Chart / 5000 series / RAL 5004 Black blue
RAL 5004 Black blue
A very dark, muted blue on screen. First published on this chart 26 March 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) | #1D1F2A |
|---|---|
| RGB | 29, 31, 42 |
| HSL | 231°, 18%, 14% |
| CMYK (naive) | 31, 26, 0, 84 |
| CIE Lab (from sRGB) | 12, 2.2, -7.7 |
| Relative luminance | 1.4% |
| Text contrast | white text 16.4:1, black text 1.3:1 |
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 5004 reads
So dark that most people read it as a soft black, black blue only shows its blue in direct sunshine. It is darker than RAL 5011 steel blue and less neutral than RAL 9005 jet black.
Where it turns up
It suits doors, railings, frames and furniture where a gentler alternative to black is wanted. Use a dark grey primer and view the sample outdoors to see the blue.
Ordering RAL 5004 in paint or powder
Quote the number, not just the name: say "RAL Classic 5004" 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.