Color

#129b69

#129b69
hex#129b69
rgbrgb(18, 155, 105)
hslhsl(158, 79%, 34%)
oklchoklch(0.611 0.132 161.1)
Closest name: Eucalyptus (#329760)Relative luminance 0.2459

Colors that go with #129b69

Charcoal, Crimson and Medium Violet Red 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 →

#9b1244

#129b24 · #12899b

#69129b · #9b6912

Split-complementary

Open in tool →

#9b1289 · #9b2412

#24129b · #9b1244 · #899b12

Contrast

#129b69 as textRatioAAAA largeAAAFix
Aaon white
3.55:1failpassfail
  • AA: use #10845a as the text (4.7:1)
  • AAA: use #0c6444 as the text (7.19:1)
  • AA: or shift the background to #212121 (4.54:1)
Aaon black
5.92:1passpassfail
  • AAA: use #14ad75 as the text (7.26:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #129b69 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

mcpConnect your agent — build around #129b69
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 #129b69 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/129b69-a2beb7-d459c2-1f2c2d-e9f1eb?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