Color

#0c2b73

#0c2b73
hex#0c2b73
rgbrgb(12, 43, 115)
hslhsl(222, 81%, 25%)
oklchoklch(0.319 0.129 263.3)
Closest name: Below the Surface (#0a2f7c)Relative luminance 0.0304

Colors that go with #0c2b73

Charcoal, Steel Blue and 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 →

#73540c

#0c5f73 · #210c73

#730c2b · #2b730c

Split-complementary

Open in tool →

#73210c · #5f730c

#730c5f · #73540c · #0c7321

Contrast

#0c2b73 as textRatioAAAA largeAAAFix
Aaon white
13.05:1passpasspassPasses AAA — no fix needed.
Aaon black
1.61:1failfailfail
  • AA: use #396eea as the text (4.59:1)
  • AAA: use #6b93ef as the text (7.05:1)
  • AA: or shift the background to #999999 (4.58:1)
  • AAA: or shift the background to #bfbfbf (7.1:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0c2b73 as the background.

Brands using this color

Fonts for this mood

#0c2b73 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0c2b73
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 #0c2b73 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0c2b73-9ca3c4-df6e4e-211f2d-e9eff1?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