Color

#289daf

#289daf
hex#289daf
rgbrgb(40, 157, 175)
hslhsl(188, 63%, 42%)
oklchoklch(0.642 0.102 210.4)
Closest name: Baltic (#279d9f)Relative luminance 0.2766

Colors that go with #289daf

Charcoal, Orange Red and Copper 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 #289daf

Tints & shades

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

Harmonies

Complementary

Open in tool →

#af3a28

#28af7d · #2859af

#af289d · #9daf28

Split-complementary

Open in tool →

#af2859 · #af7d28

#7d28af · #af3a28 · #59af28

Contrast

#289daf as textRatioAAAA largeAAAFix
Aaon white
3.21:1failpassfail
  • AA: use #218291 as the text (4.5:1)
  • AAA: use #19616c as the text (7.08:1)
  • AA: or shift the background to #292929 (4.53:1)
Aaon black
6.53:1passpassfail
  • AAA: use #2aa4b7 as the text (7.09:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #289daf as the background.

Brands using this color

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

Fonts for this mood

#289daf reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #289daf
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 #289daf and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/289daf-a2b7be-df4e81-1f252d-e9f1ee?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