Color

#5190c8

#5190c8
hex#5190c8
rgbrgb(81, 144, 200)
hslhsl(208, 52%, 55%)
oklchoklch(0.635 0.107 247.2)
Closest name: Canadian Tuxedo (#579aca)Relative luminance 0.2587

Colors that go with #5190c8

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 →

#c88851

#51c8c4 · #5155c8

#c85190 · #90c851

Split-complementary

Open in tool →

#c85155 · #c8c451

#c451c8 · #c88851 · #55c851

Contrast

#5190c8 as textRatioAAAA largeAAAFix
Aaon white
3.4:1failpassfail
  • AA: use #3879b2 as the text (4.62:1)
  • AAA: use #2b5c88 as the text (7.03:1)
  • AA: or shift the background to #242424 (4.56:1)
Aaon black
6.17:1passpassfail

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #5190c8 as the background.

Brands using this color

Fonts for this mood

#5190c8 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #5190c8
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 #5190c8 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/5190c8-9cadc4-df4e51-1f212d-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