Color

#289a41

#289a41
hex#289a41
rgbrgb(40, 154, 65)
hslhsl(133, 59%, 38%)
oklchoklch(0.604 0.162 146.8)
Closest name: Green Revolution (#009944)Relative luminance 0.2394

Colors that go with #289a41

Charcoal, Crimson and Royal 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 →

#9a2881

#489a28 · #289a7a

#41289a · #9a4128

Split-complementary

Open in tool →

#7a289a · #9a2848

#28489a · #9a2881 · #9a7a28

Contrast

#289a41 as textRatioAAAA largeAAAFix
Aaon white
3.63:1failpassfail
  • AA: use #238638 as the text (4.63:1)
  • AAA: use #1a652a as the text (7.15:1)
  • AA: or shift the background to #1f1f1f (4.54:1)
Aaon black
5.79:1passpassfail
  • AAA: use #2dae49 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 #289a41 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 #289a41
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 #289a41 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/289a41-a2beab-b84edf-1f2d28-ebf1e9?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