Color

#138695

#138695
hex#138695
rgbrgb(19, 134, 149)
hslhsl(187, 77%, 33%)
oklchoklch(0.569 0.094 209.1)
Closest name: darkcyan (#008b8b)Relative luminance 0.1936

Colors that go with #138695

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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#952213

#139563 · #134595

#951386 · #869513

Split-complementary

Open in tool →

#951345 · #956313

#631395 · #952213 · #459513

Contrast

#138695 as textRatioAAAA largeAAAFix
Aaon white
4.31:1failpassfail
  • AA: use #138290 as the text (4.54:1)
  • AAA: use #0e616c as the text (7.13:1)
  • AA: or shift the background to #0d0d0d (4.51:1)
Aaon black
4.87:1passpassfail
  • AAA: use #18a6b9 as the text (7.19:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #138695 as the background.

Brands using this color

Fonts for this mood

#138695 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #138695
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 #138695 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/138695-a2b8be-df4e83-1f262d-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