RAL 5011 Steel Blue — Hex, RGB, LRV, and Best US Paint Matches

Color spec

Also known as / near matches

RAL 5011, known as Steel Blue, evokes the deep, saturated blues found in industrial settings and classic naval uniforms. While not a direct synonym, its essence is captured by terms like ‘Midnight Blue’ or ‘Deep Ocean Blue,’ suggesting its profound depth. Many designers look for a comparable ‘true navy’ when encountering this shade, though Steel Blue carries a distinct, understated coolness. There isn’t a universally recognized Pantone equivalent, but its character aligns with very dark, slightly desaturated blue-black tones often seen in the deeper end of the Pantone fashion, home + interiors palette.

What it looks like in real life

This color, a profound and quiet blue with an LRV of 4, truly functions as a sophisticated anchor in a space. In the gentle, diffused light of a north-facing room, it leans into its steely undertones, presenting as a cool, almost inky blue that can feel wonderfully enveloping. It doesn’t shout but rather sits against the light, absorbing it to create a sense of hushed intimacy. This depth makes it quite demanding, requiring good artificial lighting to prevent a space from feeling overly dim. Yet, it offers a luxurious, velvety drape that few colors can achieve. In rooms flooded with south-facing light, Steel Blue reveals a subtle warmth, allowing its blue character to emerge more clearly without losing its inherent coolness. During the late afternoon, as the light softens and turns golden, it transforms into an incredibly moody backdrop, almost a deep, soft black with just a whisper of blue, creating an atmosphere of quiet drama. It’s a color that asks for thoughtful consideration of light, rewarding it with immense depth and elegance.

Closest matches at US paint brands

Benjamin Moore Old Navy (2063-10) is the closest match by ΔE and LRV, sharing an identical depth. The spread of matches reveals many near-black blues, with Magnolia Home Coal, Pratt & Lambert Black Lacquer, Clare Headspace, Backdrop Hocus Pocus, and Dunn-Edwards Black having a noticeably deeper, more charcoal-like undertone at LRV 3, making them read distinctly blacker than Steel Blue.

When to use this color

Great for:

• Perfect for a dramatic, enveloping library or study where a deep, thoughtful atmosphere is desired.
• Excellent for cabinetry in a kitchen or bathroom, providing a sophisticated, grounding counterpoint to lighter elements.
• Creates a stunning accent wall in a bedroom, especially when paired with warm woods and soft, textural fabrics.

Tricky in:

• In small rooms with minimal natural light, this color can feel overwhelming and absorb too much light, making the space feel smaller and darker than intended.
• Avoid using it on expansive, uninterrupted walls in brightly lit, open-concept spaces where its depth might feel stark or unfinished.

Pairs well with

Painting tips

• Primer: Given its very low LRV of 4, a dark gray tinted primer is essential to ensure true color development and reduce the number of finish coats needed.
• Sheen: For walls, a matte or eggshell finish will beautifully absorb light and enhance its velvety depth; opt for satin on cabinetry or bathroom walls for durability and a gentle sheen.
• Coats: Expect to apply at least three coats of quality paint over the recommended tinted primer to achieve the full, rich depth of this color.
• Application: Due to its profound depth, any inconsistencies from brush or roller marks will be highly visible under raking light, so meticulous, even application is paramount.

Related

• Best paint for kitchen cabinets →
• Sheen guide →
• Other RAL Classic colors →