Color

#28a7bd

#28a7bd
hex#28a7bd
rgbrgb(40, 167, 189)
hslhsl(189, 65%, 45%)
oklchoklch(0.672 0.108 212.5)
Closest name: Aquarius (#2db0ce)Relative luminance 0.3176

Colors that go with #28a7bd

Charcoal, Tomato and Amber 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 #28a7bd

Tints & shades

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

Harmonies

Complementary

Open in tool →

#bd3f28

#28bd89 · #285cbd

#bd28a7 · #a7bd28

Split-complementary

Open in tool →

#bd285c · #bd8928

#8928bd · #bd3f28 · #5cbd28

Contrast

#28a7bd as textRatioAAAA largeAAAFix
Aaon white
2.86:1failfailfail
  • AA: use #1e7e8f as the text (4.73:1)
  • AAA: use #17606d as the text (7.17:1)
  • AA: or shift the background to #303030 (4.62:1)
  • AAA: or shift the background to #080808 (7.01:1)
Aaon black
7.35:1passpasspassPasses AAA — no fix needed.

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #28a7bd as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#28a7bd reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #28a7bd
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 #28a7bd and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/28a7bd-a2b7be-df4e7e-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