RAL 640-4
| Colour code | RAL 640-4 |
| Collection | RAL Effect |
| Colour group | Serie 600 |
| Lab | 31,7 · -11,5 · -43,6 |
| Hex (indicative) | #00528F |
| Light reflectance value (LRV) | 11.28— official RAL value |
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E6 · A6-staalRAL E6 losse kleurstalen uniPart of RAL E6 losse kleurstalen uni · Item RALE-E6-UNI-LOS
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About colour family 640
Colour family from the 600 series: six solid colours and one metallic. The family sits in the dark, moderately saturated region with a blue hue.
The six solid colours. 640-1 through to 640-6. The range covers a wide lightness span, from L* 61 to L* 30. Position -1 and position -6 differ enough to work as a contrasting pair in a design.
The metallic. 640-M is matched to these six and intended to be applied alongside them, not as a replacement for any of the six. The metallic 640-M is clearly darker than the six solid colours. Never judge a metallic on a flat sample alone: viewing angle, film thickness and application method all help determine the result. Work with a sample in the final finish.
Technical data. Colour codes: RAL 640-1 to 640-6 and RAL 640-M · Lab values: L* 27.7 to 59.8, a* -17.3 to -4.8, b* -45.4 to -31.6 (640-M: L* 25.1, a* -2.8, b* -48.2) · LRV: 9.3 to 32.7 (640-M: 13.4) · Included in: RAL E1 (primary standard), RAL E3 fan deck, RAL E6 individual colour samples; the metallic also in RAL E4
Related families. RAL Effect 630, RAL Effect 650