Color

#288f4e

#288f4e
hex#288f4e
rgbrgb(40, 143, 78)
hslhsl(142, 56%, 36%)
oklchoklch(0.576 0.136 151.4)
Closest name: seagreen (#2e8b57)Relative luminance 0.2065

Colors that go with #288f4e

Charcoal, Crimson and Copper 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 →

#8f286a

#368f28 · #288f81

#4e288f · #8f4e28

Split-complementary

Open in tool →

#81288f · #8f2836

#28368f · #8f286a · #8f8128

Contrast

#288f4e as textRatioAAAA largeAAAFix
Aaon white
4.09:1failpassfail
  • AA: use #26874a as the text (4.52:1)
  • AAA: use #1c6336 as the text (7.27:1)
  • AA: or shift the background to #121212 (4.58:1)
Aaon black
5.13:1passpassfail
  • AAA: use #30ab5d as the text (7.11:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #288f4e 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 #288f4e
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 #288f4e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/288f4e-a2beaf-c659d4-1f2d2a-eaf1e9?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