RAL Design System
RAL 290 40 10 Shearwater Black
#5B5B6C
RAL 290 40 10 Shearwater Black is #5B5B6C in HEX, rgb(91, 91, 108), cmyk(16%, 16%, 0%, 58%).
RAL 290 40 10, Shearwater Black, is a cool colour from the RAL Design System — the European standard used to specify exact colours for paints and coatings. Its hex value is #5B5B6C, or rgb(91, 91, 108). It's commonly specified for architecture, interiors and product design where a wide, fine-graded palette is needed. Below are its exact colour codes (HEX, RGB, CMYK, HSL), the nearest real interior paints across 16 brands so you can match it on a wall, and similar RAL shades.
RAL 290 40 10 Colour Codes
Paint Matches — RAL 290 40 10 across 16 brands
Behr
Legacy UL250-22
Dulux
Prince Royal S44A6
Valspar
Boysenberry Jam 4002-4C
Dunn-Edwards
Pencil Lead DE5922
Hallman-Lindsay
Blackwater 1320
Benjamin Moore
Blue 1435
PPG
Purple Parlor 13-17
Vista Paint
Blackwater C-1319
Sherwin-Williams
Mineral Gray SW2740
Kilz
India Ink RB100-01
Farrow & Ball
Stiffkey Blue 281
IKEA
IKEA156 156
RAL
Pearl Black Berry 4012
Colorhouse
Wool .06 Wool-06
Dutch Boy
Seal of Grey VS-9301
Kobra
Blue 31
Light Reflectance & Undertone
Light Reflectance Value (LRV)
11/100
Dark
Soaks up light and feels moody and intimate. Great for studies, dining rooms and accent walls; pair with ample lighting.
Undertone
A near-neutral with a subtle cool violet undertone — it will pick up colour from surrounding surfaces and shift noticeably under different light.
Colour Harmonies
Complementary
Analogous
Triadic
Monochromatic
Shades & Tints
Lighter
Darker
Saturation
Similar RAL Colours
About RAL 290 40 10
What is a RAL colour?
RAL is the European colour-matching standard used to specify exact colours for paints and coatings. Each code — like RAL 290 40 10 from the RAL Design System — maps to one defined colour, so a manufacturer or painter anywhere produces the identical result. It's used first and foremost on window frames, doors, façades, gates, railings and powder-coated metalwork.
Matching RAL 290 40 10 on interior walls
RAL is defined for industrial coatings, not interior wall paint — so to paint a room in this colour you match it to a real interior brand. The Paint Matches above show the nearest Shearwater Black equivalent across 16 brands (Benjamin Moore, Sherwin-Williams, Behr, Dulux and more), each with its code, so you can take RAL 290 40 10 straight to a can.
More
Our color tools run on our own catalogue of 26,000+ real paint colors across 16 brands — Benjamin Moore, Sherwin-Williams, Behr, Dulux, RAL and more — with the color math (HSL and CIELAB matching) computed in-house, not scraped from summaries. Every color you pick maps to a real, buyable paint with its code, so what you see here you can actually take to the store. We review and update these tools and their data regularly.
Created by Denis Kataev, founder of DSGN.HOUSE — a software engineer and digital entrepreneur building professional color-design tools for everyone.
Frequently Asked Questions
What colour is RAL 290 40 10?
RAL 290 40 10 is Shearwater Black. On screen it is approximately #5B5B6C (rgb 91, 91, 108).
What is RAL 290 40 10 in RGB?
RAL 290 40 10 is approximately rgb(91, 91, 108). Its HSL and CMYK values are in the colour codes above.
What paint matches RAL 290 40 10?
See “Paint Matches” above — it shows the nearest real paint in 16 brands (Benjamin Moore, Sherwin-Williams, Behr, Dulux and more) so you can paint a wall to match this RAL colour.
What is the HEX code for RAL 290 40 10?
RAL 290 40 10 (Shearwater Black) is approximately #5B5B6C in HEX — the standard sRGB equivalent for screen.
What is RAL 290 40 10 in CMYK?
RAL 290 40 10 converts to roughly cmyk(16%, 16%, 0%, 58%). For exact ink, confirm against a physical RAL fan deck.
Are RAL hex values exact?
They're the standard sRGB equivalent for screen. RAL is defined for physical coatings, so always confirm critical colour against a physical RAL fan deck.
