Color

#28989a

#28989a
hex#28989a
rgbrgb(40, 152, 154)
hslhsl(181, 59%, 38%)
oklchoklch(0.621 0.096 196.8)
Closest name: Baltic (#279d9f)Relative luminance 0.2524

Colors that go with #28989a

Charcoal, Copper and Crimson 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 #28989a

Tints & shades

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

Harmonies

Complementary

Open in tool →

#9a2a28

#289a63 · #285f9a

#9a2898 · #989a28

Split-complementary

Open in tool →

#9a285f · #9a6328

#63289a · #9a2a28 · #5f9a28

Contrast

#28989a as textRatioAAAA largeAAAFix
Aaon white
3.47:1failpassfail
  • AA: use #218082 as the text (4.69:1)
  • AAA: use #196061 as the text (7.27:1)
  • AA: or shift the background to #212121 (4.64:1)
Aaon black
6.05:1passpassfail
  • AAA: use #2ca8aa as the text (7.29:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #28989a 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

#28989a reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #28989a
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 #28989a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/28989a-a2babe-d45992-1f272d-e9f1ed?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