Color

#528bb7

#528bb7
hex#528bb7
rgbrgb(82, 139, 183)
hslhsl(206, 41%, 52%)
oklchoklch(0.616 0.09 243.3)
Closest name: steelblue (#4682b4)Relative luminance 0.2368

Colors that go with #528bb7

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 →

#b77e52

#52b7b0 · #5259b7

#b7528b · #8bb752

Split-complementary

Open in tool →

#b75259 · #b7b052

#b052b7 · #b77e52 · #59b752

Contrast

#528bb7 as textRatioAAAA largeAAAFix
Aaon white
3.66:1failpassfail
  • AA: use #4479a2 as the text (4.66:1)
  • AAA: use #335b7a as the text (7.2:1)
  • AA: or shift the background to #1f1f1f (4.5:1)
Aaon black
5.74:1passpassfail
  • AAA: use #6c9cc1 as the text (7.16:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #528bb7 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

#528bb7 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #528bb7
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 #528bb7 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/528bb7-9caec4-df4e56-1f212d-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