Color

#18477b

#18477b
hex#18477b
rgbrgb(24, 71, 123)
hslhsl(212, 67%, 29%)
oklchoklch(0.395 0.101 253.7)
Closest name: Aegean Blue (#1b416f)Relative luminance 0.0613

Colors that go with #18477b

Crimson, Teal 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 →

#7b4d18

#18787b · #1c187b

#7b1847 · #477b18

Split-complementary

Open in tool →

#7b1c18 · #787b18

#7b1878 · #7b4d18 · #187b1c

Contrast

#18477b as textRatioAAAA largeAAAFix
Aaon white
9.43:1passpasspassPasses AAA — no fix needed.
Aaon black
2.23:1failfailfail
  • AA: use #2875cc as the text (4.51:1)
  • AAA: use #5d9adf as the text (7.15:1)
  • AA: or shift the background to #b5b5b5 (4.6:1)
  • AAA: or shift the background to #dedede (7.01:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #18477b 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

#18477b reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #18477b
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 #18477b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/18477b-9caac4-df564e-1f202d-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