Color

#288f49

#288f49
hex#288f49
rgbrgb(40, 143, 73)
hslhsl(139, 56%, 36%)
oklchoklch(0.575 0.14 149.8)
Closest name: seagreen (#2e8b57)Relative luminance 0.2058

Colors that go with #288f49

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 →

#8f286f

#3b8f28 · #288f7c

#49288f · #8f4928

Split-complementary

Open in tool →

#7c288f · #8f283b

#283b8f · #8f286f · #8f7c28

Contrast

#288f49 as textRatioAAAA largeAAAFix
Aaon white
4.11:1failpassfail
  • AA: use #268745 as the text (4.53:1)
  • AAA: use #1c6333 as the text (7.29:1)
  • AA: or shift the background to #121212 (4.56:1)
Aaon black
5.12:1passpassfail
  • AAA: use #30ab57 as the text (7.09:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #288f49 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 #288f49
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 #288f49 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/288f49-a2beae-c059d4-1f2d2a-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