Color

#0a2d67

#0a2d67
hex#0a2d67
rgbrgb(10, 45, 103)
hslhsl(217, 82%, 22%)
oklchoklch(0.312 0.11 260.3)
Closest name: Marine (#042e60)Relative luminance 0.0292

Colors that go with #0a2d67

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 →

#66430a

#0a5b66 · #150a66

#660a2d · #2d660a

Split-complementary

Open in tool →

#66150a · #5b660a

#660a5b · #66430a · #0a6615

Contrast

#0a2d67 as textRatioAAAA largeAAAFix
Aaon white
13.26:1passpasspassPasses AAA — no fix needed.
Aaon black
1.58:1failfailfail
  • AA: use #2570e9 as the text (4.57:1)
  • AAA: use #5d95ef as the text (7.01:1)
  • AA: or shift the background to #999999 (4.65:1)
  • AAA: or shift the background to #bdbdbd (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 #0a2d67 as the background.

Brands using this color

Fonts for this mood

#0a2d67 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0a2d67
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 #0a2d67 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0a2d67-9ca7c4-df624e-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