Color

#129d0b

#129d0b
hex#129d0b
rgbrgb(18, 157, 11)
hslhsl(117, 87%, 33%)
oklchoklch(0.605 0.201 142.3)
Closest name: Herbalist’s Garden (#119900)Relative luminance 0.2427

Colors that go with #129d0b

Crimson, Royal Blue and Charcoal 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 →

#960b9d

#5b9d0b · #0b9d4d

#0b129d · #9d0b12

Split-complementary

Open in tool →

#4d0b9d · #9d0b5b

#0b5b9d · #960b9d · #9d4d0b

Contrast

#129d0b as textRatioAAAA largeAAAFix
Aaon white
3.59:1failpassfail
  • AA: use #108a0a as the text (4.5:1)
  • AAA: use #0c6407 as the text (7.39:1)
  • AA: or shift the background to #1f1f1f (4.59:1)
Aaon black
5.85:1passpassfail
  • AAA: use #14b00c as the text (7.25:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #129d0b 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 #129d0b
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 #129d0b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/129d0b-a2bea4-924edf-1f2d25-edf1e9?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