Chart / 5000 series / RAL 5013 Cobalt blue
RAL 5013 Cobalt blue
A very dark, moderately strong blue on screen. First published on this chart 24 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) | #232D53 |
|---|---|
| RGB | 35, 45, 83 |
| HSL | 228°, 41%, 23% |
| CMYK (naive) | 58, 46, 0, 67 |
| CIE Lab (from sRGB) | 19.5, 8.4, -24.5 |
| Relative luminance | 2.9% |
| Text contrast | white text 13.4:1, black text 1.6:1 |
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 5013 reads
The name suggests a bright pigment, but cobalt blue here is a deep, dark navy. It sits close to RAL 5003 sapphire blue, slightly more purple, and reads sober rather than bright.
Where it turns up
It works on doors, railings, furniture and window frames. Order a sample, because the name sets the wrong expectation for many buyers.
Ordering RAL 5013 in paint or powder
Quote the number, not just the name: say "RAL Classic 5013" 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.