Color

#287b54

#287b54
hex#287b54
rgbrgb(40, 123, 84)
hslhsl(152, 51%, 32%)
oklchoklch(0.522 0.101 159.1)
Closest name: Amazon (#387b54)Relative luminance 0.1526

Colors that go with #287b54

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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#7b284f

#287b2b · #28787b

#54287b · #7b5428

Split-complementary

Open in tool →

#7b2878 · #7b2b28

#2b287b · #7b284f · #787b28

Contrast

#287b54 as textRatioAAAA largeAAAFix
Aaon white
5.18:1passpassfail
  • AAA: use #206445 as the text (7.07:1)
Aaon black
4.05:1failpassfail
  • AA: use #2c875c as the text (4.73:1)
  • AAA: use #37a974 as the text (7.09:1)
  • AA: or shift the background to #f0f0f0 (4.55:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #287b54 as the background.

Brands using this color

mcpConnect your agent — build around #287b54
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 #287b54 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/287b54-a2beb4-d459ce-1f2d2d-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