Color

#528cbc

#528cbc
hex#528cbc
rgbrgb(82, 140, 188)
hslhsl(207, 44%, 53%)
oklchoklch(0.621 0.095 245.1)
Closest name: steelblue (#4682b4)Relative luminance 0.2418

Colors that go with #528cbc

Charcoal, Copper 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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#bc8252

#52bcb7 · #5258bc

#bc528c · #8cbc52

Split-complementary

Open in tool →

#bc5258 · #bcb752

#b752bc · #bc8252 · #58bc52

Contrast

#528cbc as textRatioAAAA largeAAAFix
Aaon white
3.6:1failpassfail
  • AA: use #427aa9 as the text (4.58:1)
  • AAA: use #315b7d as the text (7.18:1)
  • AA: or shift the background to #1f1f1f (4.58:1)
Aaon black
5.84:1passpassfail
  • AAA: use #689bc4 as the text (7.07:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #528cbc 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

#528cbc reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #528cbc
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 #528cbc and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/528cbc-9cadc4-df4e53-1f212d-e9f1f1?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