Color

#5583b4

#5583b4
hex#5583b4
rgbrgb(85, 131, 180)
hslhsl(211, 39%, 52%)
oklchoklch(0.598 0.091 251)
Closest name: steelblue (#4682b4)Relative luminance 0.2146

Colors that go with #5583b4

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.

Real palettes that use #5583b4

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#b48655

#55b3b4 · #5655b4

#b45583 · #83b455

Split-complementary

Open in tool →

#b45655 · #b3b455

#b455b3 · #b48655 · #55b456

Contrast

#5583b4 as textRatioAAAA largeAAAFix
Aaon white
3.97:1failpassfail
  • AA: use #4b79aa as the text (4.55:1)
  • AAA: use #385b80 as the text (7.06:1)
  • AA: or shift the background to #171717 (4.52:1)
Aaon black
5.29:1passpassfail
  • AAA: use #759ac2 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 #5583b4 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

#5583b4 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #5583b4
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 #5583b4 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/5583b4-9cabc4-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