Color

#288f50

#288f50
hex#288f50
rgbrgb(40, 143, 80)
hslhsl(143, 56%, 36%)
oklchoklch(0.576 0.134 152.1)
Closest name: seagreen (#2e8b57)Relative luminance 0.2068

Colors that go with #288f50

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 →

#8f2868

#348f28 · #288f83

#50288f · #8f5028

Split-complementary

Open in tool →

#83288f · #8f2834

#28348f · #8f2868 · #8f8328

Contrast

#288f50 as textRatioAAAA largeAAAFix
Aaon white
4.09:1failpassfail
  • AA: use #26874b as the text (4.52:1)
  • AAA: use #1c6337 as the text (7.27:1)
  • AA: or shift the background to #141414 (4.5:1)
Aaon black
5.14:1passpassfail
  • AAA: use #30ab5f as the text (7.12:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #288f50 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

mcpConnect your agent — build around #288f50
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 #288f50 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/288f50-a2beb0-c859d4-1f2d2b-eaf1e9?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