Color

#138174

#138174
hex#138174
rgbrgb(19, 129, 116)
hslhsl(173, 74%, 29%)
oklchoklch(0.543 0.093 182.3)
Closest name: Emerald Whispers (#2b8478)Relative luminance 0.171

Colors that go with #138174

Charcoal, Medium Violet Red 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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#811320

#13813d · #135781

#741381 · #817413

Split-complementary

Open in tool →

#811357 · #813d13

#3d1381 · #811320 · #578113

Contrast

#138174 as textRatioAAAA largeAAAFix
Aaon white
4.75:1passpassfail
  • AAA: use #0f6258 as the text (7.22:1)
Aaon black
4.42:1failpassfail
  • AA: use #148578 as the text (4.66:1)
  • AAA: use #19a998 as the text (7.17:1)
  • AA: or shift the background to #fafafa (4.55:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #138174 as the background.

Brands using this color

Fonts for this mood

#138174 reads as vivid, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #138174
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 #138174 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/138174-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