Color

#528ac7

#528ac7
hex#528ac7
rgbrgb(82, 138, 199)
hslhsl(211, 51%, 55%)
oklchoklch(0.621 0.11 251.8)
Closest name: Blue Jay (#5588dd)Relative luminance 0.2409

Colors that go with #528ac7

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 →

#c78e52

#52c5c7 · #5452c7

#c7528a · #8ac752

Split-complementary

Open in tool →

#c75452 · #c5c752

#c752c5 · #c78e52 · #52c754

Contrast

#528ac7 as textRatioAAAA largeAAAFix
Aaon white
3.61:1failpassfail
  • AA: use #3c78b9 as the text (4.59:1)
  • AAA: use #2d5a8b as the text (7.13:1)
  • AA: or shift the background to #1f1f1f (4.57:1)
Aaon black
5.82:1passpassfail
  • AAA: use #699ace as the text (7.11:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #528ac7 as the background.

Brands using this color

Fonts for this mood

#528ac7 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #528ac7
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 #528ac7 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/528ac7-9cabc4-df534e-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