Named color

Blue Jay

#5588dd
hex#5588dd
rgbrgb(85, 136, 221)
hslhsl(218, 67%, 60%)
oklchoklch(0.631 0.14 260.1)
Relative luminance 0.2476

Blue Jay on this page is the real value, not a screenshot: exact hex, RGB, HSL and OKLCH, ten tints and ten shades, classic harmonies, and WCAG contrast with fixes — plus the 1 public brand that uses it and the palettes it appears in.

Colors that go with Blue Jay

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 →

#ddab55

#55cbdd · #6755dd

#dd5587 · #87dd55

Split-complementary

Open in tool →

#dd6755 · #cbdd55

#dd55cb · #ddab55 · #55dd67

Contrast

Blue Jay as textRatioAAAA largeAAAFix
Aaon white
3.53:1failpassfail
  • AA: use #3772d7 as the text (4.61:1)
  • AAA: use #2254aa as the text (7.2:1)
  • AA: or shift the background to #212121 (4.56:1)
Aaon black
5.95:1passpassfail
  • AAA: use #6a96e2 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 Blue Jay as the background.

Brands using this color

Fonts for this mood

Blue Jay reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around Blue Jay
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 #5588dd and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/5588dd-9ca6c4-df644e-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