Color

#287b44

#287b44
hex#287b44
rgbrgb(40, 123, 68)
hslhsl(140, 51%, 32%)
oklchoklch(0.519 0.117 151.1)
Closest name: Cucumber Queen (#3c773c)Relative luminance 0.1503

Colors that go with #287b44

Charcoal, Medium Violet Red 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 →

#7b285f

#367b28 · #287b6d

#44287b · #7b4428

Split-complementary

Open in tool →

#6d287b · #7b2836

#28367b · #7b285f · #7b6d28

Contrast

#287b44 as textRatioAAAA largeAAAFix
Aaon white
5.24:1passpassfail
  • AAA: use #206437 as the text (7.14:1)
Aaon black
4.01:1failpassfail
  • AA: use #2c874a as the text (4.67:1)
  • AAA: use #38ad5f as the text (7.31:1)
  • AA: or shift the background to #f0f0f0 (4.6:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #287b44 as the background.

Brands using this color

mcpConnect your agent — build around #287b44
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 #287b44 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/287b44-a2beaf-c259d4-1f2d2a-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