Color

#178587

#178587
hex#178587
rgbrgb(23, 133, 135)
hslhsl(181, 71%, 31%)
oklchoklch(0.562 0.091 196.8)
Closest name: darkcyan (#008b8b)Relative luminance 0.1871

Colors that go with #178587

Charcoal, Copper and Crimson 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 #178587

Tints & shades

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

Harmonies

Complementary

Open in tool →

#871917

#178751 · #174d87

#871785 · #858717

Split-complementary

Open in tool →

#87174d · #875117

#511787 · #871917 · #4d8717

Contrast

#178587 as textRatioAAAA largeAAAFix
Aaon white
4.43:1failpassfail
  • AA: use #168183 as the text (4.66:1)
  • AAA: use #116364 as the text (7.02:1)
  • AA: or shift the background to #080808 (4.52:1)
Aaon black
4.74:1passpassfail
  • AAA: use #1da8aa as the text (7.23:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #178587 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

#178587 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #178587
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 #178587 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/178587-a2babe-d45992-1f272d-e9f1ed?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