Color

#528ceb

#528ceb
hex#528ceb
rgbrgb(82, 140, 235)
hslhsl(217, 79%, 62%)
oklchoklch(0.646 0.155 259.8)
Closest name: Blue Jay (#5588dd)Relative luminance 0.2655

Colors that go with #528ceb

Charcoal, Medium Sea Green 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 →

#ebb052

#52d9eb · #6352eb

#eb528c · #8ceb52

Split-complementary

Open in tool →

#eb6352 · #d9eb52

#eb52d9 · #ebb052 · #52eb63

Contrast

#528ceb as textRatioAAAA largeAAAFix
Aaon white
3.33:1failpassfail
  • AA: use #2871e6 as the text (4.57:1)
  • AAA: use #1553b7 as the text (7.11:1)
  • AA: or shift the background to #262626 (4.55:1)
Aaon black
6.31:1passpassfail
  • AAA: use #6498ed as the text (7.26:1)

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

#528ceb reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

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

tool url/palettes/new/528ceb-9ca7c4-df624e-201f2d-e9f0f1?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