Color

#186e77

#186e77
hex#186e77
rgbrgb(24, 110, 119)
hslhsl(186, 66%, 28%)
oklchoklch(0.494 0.078 205.6)
Closest name: Aqua Obscura (#05696b)Relative luminance 0.1268

Colors that go with #186e77

Charcoal, Crimson and Cobalt 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 #186e77

Tints & shades

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

Harmonies

Complementary

Open in tool →

#772218

#187751 · #183e77

#77186d · #6d7718

Split-complementary

Open in tool →

#77183e · #775118

#511877 · #772218 · #3e7718

Contrast

#186e77 as textRatioAAAA largeAAAFix
Aaon white
5.94:1passpassfail
  • AAA: use #16616a as the text (7.11:1)
Aaon black
3.54:1failpassfail
  • AA: use #1d818c as the text (4.57:1)
  • AAA: use #24a4b2 as the text (7.03:1)
  • AA: or shift the background to #e3e3e3 (4.63:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #186e77 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

#186e77 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #186e77
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 #186e77 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/186e77-a2b8be-df4e86-1f262d-e9f1ee?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