Color

#0c236a

#0c236a
hex#0c236a
rgbrgb(12, 35, 106)
hslhsl(225, 80%, 23%)
oklchoklch(0.293 0.127 265.1)
Closest name: Black Sea Night (#052462)Relative luminance 0.0232

Colors that go with #0c236a

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 →

#6a520c

#0c526a · #230c6a

#6a0c23 · #236a0c

Split-complementary

Open in tool →

#6a230c · #526a0c

#6a0c52 · #6a520c · #0c6a23

Contrast

#0c236a as textRatioAAAA largeAAAFix
Aaon white
14.34:1passpasspassPasses AAA — no fix needed.
Aaon black
1.46:1failfailfail
  • AA: use #436dea as the text (4.61:1)
  • AAA: use #7594f0 as the text (7.25:1)
  • AA: or shift the background to #919191 (4.55:1)
  • AAA: or shift the background to #b8b8b8 (7.23:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0c236a as the background.

Brands using this color

Fonts for this mood

#0c236a reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0c236a
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 #0c236a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0c236a-9ca1c4-df754e-221f2d-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