Color

#288166

#288166
hex#288166
rgbrgb(40, 129, 102)
hslhsl(162, 53%, 33%)
oklchoklch(0.543 0.094 168.9)
Closest name: Elf (#1b8a6b)Relative luminance 0.1711

Colors that go with #288166

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 →

#812842

#288139 · #286f81

#662881 · #816628

Split-complementary

Open in tool →

#81286f · #813928

#392881 · #812842 · #6f8128

Contrast

#288166 as textRatioAAAA largeAAAFix
Aaon white
4.75:1passpassfail
  • AAA: use #1e624d as the text (7.22:1)
Aaon black
4.42:1failpassfail
  • AA: use #298569 as the text (4.65:1)
  • AAA: use #34a885 as the text (7.09:1)
  • AA: or shift the background to #fafafa (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 #288166 as the background.

Brands using this color

mcpConnect your agent — build around #288166
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 #288166 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/288166-a2beb9-d459b9-1f2b2d-e9f1eb?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