Color

#18678b

#18678b
hex#18678b
rgbrgb(24, 103, 139)
hslhsl(199, 71%, 32%)
oklchoklch(0.485 0.092 233.8)
Closest name: Chill of the Night (#256d8d)Relative luminance 0.1176

Colors that go with #18678b

Charcoal, Crimson and Royal 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 →

#8c3c18

#188c76 · #182d8c

#8c1867 · #678c18

Split-complementary

Open in tool →

#8c182d · #8c7618

#76188c · #8c3c18 · #2d8c18

Contrast

#18678b as textRatioAAAA largeAAAFix
Aaon white
6.27:1passpassfail
  • AAA: use #155d7e as the text (7.24:1)
Aaon black
3.35:1failpassfail
  • AA: use #1d7daa as the text (4.57:1)
  • AAA: use #25a1da as the text (7.19:1)
  • AA: or shift the background to #dbdbdb (4.53:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #18678b as the background.

Brands using this color

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

Palettes built around it

Fonts for this mood

#18678b reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #18678b
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 #18678b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/18678b-9cb3c4-df4e66-1f232d-e9f1f0?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