Color

#289f48

#289f48
hex#289f48
rgbrgb(40, 159, 72)
hslhsl(136, 60%, 39%)
oklchoklch(0.619 0.162 147.9)
Closest name: Green Revolution (#009944)Relative luminance 0.2572

Colors that go with #289f48

Charcoal, Royal Blue and 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 →

#9f287f

#449f28 · #289f83

#48289f · #9f4828

Split-complementary

Open in tool →

#83289f · #9f2844

#28449f · #9f287f · #9f8328

Contrast

#289f48 as textRatioAAAA largeAAAFix
Aaon white
3.42:1failpassfail
  • AA: use #22873d as the text (4.56:1)
  • AAA: use #1a662e as the text (7.04:1)
  • AA: or shift the background to #242424 (4.54:1)
Aaon black
6.14:1passpassfail
  • AAA: use #2bab4d as the text (7.04:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #289f48 as the background.

Brands using this color

Palettes built around it

mcpConnect your agent — build around #289f48
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 #289f48 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/289f48-a2bead-b959d4-1f2d29-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