Color

#287b52

#287b52
hex#287b52
rgbrgb(40, 123, 82)
hslhsl(150, 51%, 32%)
oklchoklch(0.522 0.103 157.9)
Closest name: Amazon (#387b54)Relative luminance 0.1523

Colors that go with #287b52

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 →

#7b2852

#287b28 · #287b7b

#52287b · #7b5228

Split-complementary

Open in tool →

#7b287b · #7b2828

#28287b · #7b2852 · #7b7b28

Contrast

#287b52 as textRatioAAAA largeAAAFix
Aaon white
5.19:1passpassfail
  • AAA: use #206442 as the text (7.09:1)
Aaon black
4.05:1failpassfail
  • AA: use #2c8759 as the text (4.72:1)
  • AAA: use #37a970 as the text (7.07:1)
  • AA: or shift the background to #f0f0f0 (4.56:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #287b52 as the background.

Brands using this color

mcpConnect your agent — build around #287b52
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 #287b52 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/287b52-a2beb3-d459d2-1f2d2c-e9f1ea?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