Color

#12436e

#12436e
hex#12436e
rgbrgb(18, 67, 110)
hslhsl(208, 72%, 25%)
oklchoklch(0.374 0.09 249.3)
Closest name: Aegean Blue (#1b416f)Relative luminance 0.0527

Colors that go with #12436e

Cadet Blue, Midnight Blue and Powder 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.

Real palettes that use #12436e

Tints & shades

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

Harmonies

Complementary

Open in tool →

#6e3d12

#126e6b · #12156e

#6e1243 · #436e12

Split-complementary

Open in tool →

#6e1215 · #6e6b12

#6b126e · #6e3d12 · #156e12

Contrast

#12436e as textRatioAAAA largeAAAFix
Aaon white
10.23:1passpasspassPasses AAA — no fix needed.
Aaon black
2.05:1failfailfail
  • AA: use #2078c5 as the text (4.55:1)
  • AAA: use #4b9be2 as the text (7.09:1)
  • AA: or shift the background to #adadad (4.56:1)
  • AAA: or shift the background to #d6d6d6 (7.04:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #12436e as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

#12436e reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #12436e
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 #12436e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/12436e-9cadc4-df4e51-1f212d-e9f1f1?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