Color

#287b2b

#287b2b
hex#287b2b
rgbrgb(40, 123, 43)
hslhsl(122, 51%, 32%)
oklchoklch(0.515 0.141 143.7)
Closest name: Forestial (#007733)Relative luminance 0.1479

Colors that go with #287b2b

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 →

#7b2878

#4f7b28 · #287b54

#2b287b · #7b2b28

Split-complementary

Open in tool →

#54287b · #7b284f

#284f7b · #7b2878 · #7b5428

Contrast

#287b2b as textRatioAAAA largeAAAFix
Aaon white
5.31:1passpassfail
  • AAA: use #206423 as the text (7.22:1)
Aaon black
3.96:1failpassfail
  • AA: use #2c872f as the text (4.61:1)
  • AAA: use #38ad3c as the text (7.21:1)
  • AA: or shift the background to #ededed (4.53:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #287b2b as the background.

Brands using this color

mcpConnect your agent — build around #287b2b
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 #287b2b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/287b2b-a2bea6-9e4edf-1f2d26-edf1e9?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