Color

#186d63

#186d63
hex#186d63
rgbrgb(24, 109, 99)
hslhsl(173, 64%, 26%)
oklchoklch(0.484 0.079 183.2)
Closest name: Aqua Obscura (#05696b)Relative luminance 0.1203

Colors that go with #186d63

Charcoal, Medium Violet Red and Cadet 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 #186d63

Tints & shades

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

Harmonies

Complementary

Open in tool →

#6d1822

#186d38 · #184c6d

#63186d · #6d6318

Split-complementary

Open in tool →

#6d184c · #6d3818

#38186d · #6d1822 · #4c6d18

Contrast

#186d63 as textRatioAAAA largeAAAFix
Aaon white
6.16:1passpassfail
  • AAA: use #156057 as the text (7.39:1)
Aaon black
3.41:1failpassfail
  • AA: use #1c8276 as the text (4.5:1)
  • AAA: use #25a798 as the text (7.06:1)
  • AA: or shift the background to #dedede (4.58:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #186d63 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

#186d63 reads as vivid, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #186d63
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 #186d63 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/186d63-a2bebe-d459a3-1f292d-e9f1ec?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