Color

#528cc7

#528cc7
hex#528cc7
rgbrgb(82, 140, 199)
hslhsl(210, 51%, 55%)
oklchoklch(0.626 0.109 250.3)
Closest name: Blue Jay (#5588dd)Relative luminance 0.2467

Colors that go with #528cc7

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 →

#c78c52

#52c7c7 · #5252c7

#c7528c · #8cc752

Split-complementary

Open in tool →

#c75252 · #c7c752

#c752c7 · #c78c52 · #52c752

Contrast

#528cc7 as textRatioAAAA largeAAAFix
Aaon white
3.54:1failpassfail
  • AA: use #3b78b5 as the text (4.63:1)
  • AAA: use #2c5987 as the text (7.28:1)
  • AA: or shift the background to #212121 (4.55:1)
Aaon black
5.93:1passpassfail
  • AAA: use #699cce as the text (7.25:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #528cc7 as the background.

Brands using this color

Fonts for this mood

#528cc7 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #528cc7
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 #528cc7 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/528cc7-9cabc4-df514e-1f202d-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