Color

#17666d

#17666d
hex#17666d
rgbrgb(23, 102, 109)
hslhsl(185, 65%, 26%)
oklchoklch(0.468 0.073 204)
Closest name: Aqua Obscura (#05696b)Relative luminance 0.1079

Colors that go with #17666d

Charcoal, Crimson and Steel 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 #17666d

Tints & shades

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

Harmonies

Complementary

Open in tool →

#6d1e17

#176d49 · #173b6d

#6d1766 · #666d17

Split-complementary

Open in tool →

#6d173b · #6d4917

#49176d · #6d1e17 · #3b6d17

Contrast

#17666d as textRatioAAAA largeAAAFix
Aaon white
6.65:1passpassfail
  • AAA: use #166269 as the text (7.03:1)
Aaon black
3.16:1failpassfail
  • AA: use #1d828b as the text (4.62:1)
  • AAA: use #25a5b1 as the text (7.1:1)
  • AA: or shift the background to #d6d6d6 (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 #17666d as the background.

Brands using this color

Fonts for this mood

#17666d reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #17666d
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 #17666d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/17666d-a2b8be-df4e88-1f262d-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