Color

#0b2e6b

#0b2e6b
hex#0b2e6b
rgbrgb(11, 46, 107)
hslhsl(218, 81%, 23%)
oklchoklch(0.318 0.114 260.8)
Closest name: Atlantic Navy (#13336f)Relative luminance 0.0309

Colors that go with #0b2e6b

Charcoal, Crimson and Steel Blue lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#6a470b

#0b5d6a · #180b6a

#6a0b2e · #2e6a0b

Split-complementary

Open in tool →

#6a180b · #5d6a0b

#6a0b5d · #6a470b · #0b6a18

Contrast

#0b2e6b as textRatioAAAA largeAAAFix
Aaon white
12.98:1passpasspassPasses AAA — no fix needed.
Aaon black
1.62:1failfailfail
  • AA: use #2b70e9 as the text (4.6:1)
  • AAA: use #6296ef as the text (7.13:1)
  • AA: or shift the background to #999999 (4.56:1)
  • AAA: or shift the background to #bfbfbf (7.06:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0b2e6b as the background.

Brands using this color

Fonts for this mood

#0b2e6b reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0b2e6b
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #0b2e6b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0b2e6b-9ca6c4-df644e-201f2d-e9f0f1?lock=0&style=vibrant

Want the agent to remember your picks and write them into a living brand? Create a free BrandSweets workspace.

Machine-readable: color.md