Color

#287767

#287767
hex#287767
rgbrgb(40, 119, 103)
hslhsl(168, 50%, 31%)
oklchoklch(0.517 0.08 176.9)
Closest name: Green Sleeves (#39766c)Relative luminance 0.1462

Colors that go with #287767

Charcoal, Crimson and Medium Violet Red 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.

Real palettes that use #287767

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#772837

#28773f · #285f77

#672877 · #776728

Split-complementary

Open in tool →

#77285f · #773f28

#3f2877 · #772837 · #5f7728

Contrast

#287767 as textRatioAAAA largeAAAFix
Aaon white
5.35:1passpassfail
  • AAA: use #216356 as the text (7.04:1)
Aaon black
3.92:1failpassfail
  • AA: use #2b8271 as the text (4.53:1)
  • AAA: use #38a892 as the text (7.18:1)
  • AA: or shift the background to #ededed (4.57:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #287767 as the background.

Brands using this color

Palettes built around it

mcpConnect your agent — build around #287767
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 #287767 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/287767-a2bebc-d459ad-1f2a2d-e9f1ec?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