Color

#289f75

#289f75
hex#289f75
rgbrgb(40, 159, 117)
hslhsl(159, 60%, 39%)
oklchoklch(0.628 0.121 164.3)
Closest name: Bulma Hair (#359e6b)Relative luminance 0.2653

Colors that go with #289f75

Charcoal, Crimson and 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.

Real palettes that use #289f75

Tints & shades

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

Harmonies

Complementary

Open in tool →

#9f2852

#289f3a · #288d9f

#75289f · #9f7528

Split-complementary

Open in tool →

#9f288d · #9f3a28

#3a289f · #9f2852 · #8d9f28

Contrast

#289f75 as textRatioAAAA largeAAAFix
Aaon white
3.33:1failpassfail
  • AA: use #218360 as the text (4.69:1)
  • AAA: use #186248 as the text (7.29:1)
  • AA: or shift the background to #262626 (4.54:1)
Aaon black
6.31:1passpassfail
  • AAA: use #2bab7e as the text (7.23:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #289f75 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 #289f75
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 #289f75 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/289f75-a2beb8-d459c0-1f2c2d-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