Color

#287668

#287668
hex#287668
rgbrgb(40, 118, 104)
hslhsl(169, 49%, 31%)
oklchoklch(0.514 0.079 178.9)
Closest name: Green Sleeves (#39766c)Relative luminance 0.1441

Colors that go with #287668

Charcoal, Medium Violet Red 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.

Real palettes that use #287668

Tints & shades

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

Harmonies

Complementary

Open in tool →

#762837

#287641 · #285d76

#682876 · #766828

Split-complementary

Open in tool →

#76285d · #764128

#412876 · #762837 · #5d7628

Contrast

#287668 as textRatioAAAA largeAAAFix
Aaon white
5.41:1passpassfail
  • AAA: use #226357 as the text (7.02:1)
Aaon black
3.88:1failpassfail
  • AA: use #2e8575 as the text (4.73:1)
  • AAA: use #39a793 as the text (7.12:1)
  • AA: or shift the background to #ebebeb (4.54:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #287668 as the background.

Brands using this color

Palettes built around it

mcpConnect your agent — build around #287668
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 #287668 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/287668-a2bebc-d459ab-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