Color

#519ac8

#519ac8
hex#519ac8
rgbrgb(81, 154, 200)
hslhsl(203, 52%, 55%)
oklchoklch(0.658 0.1 238.5)
Closest name: Canadian Tuxedo (#579aca)Relative luminance 0.2903

Colors that go with #519ac8

Charcoal, Bronze 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 #519ac8

Tints & shades

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

Harmonies

Complementary

Open in tool →

#c87e51

#51c8ba · #515fc8

#c8519a · #9ac851

Split-complementary

Open in tool →

#c8515f · #c8ba51

#ba51c8 · #c87e51 · #5fc851

Contrast

#519ac8 as textRatioAAAA largeAAAFix
Aaon white
3.09:1failpassfail
  • AA: use #357ba7 as the text (4.62:1)
  • AAA: use #275c7c as the text (7.22:1)
  • AA: or shift the background to #2b2b2b (4.59:1)
Aaon black
6.81:1passpassfail
  • AAA: use #589fca as the text (7.23:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #519ac8 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

#519ac8 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #519ac8
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 #519ac8 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/519ac8-9cb0c4-df4e5d-1f222d-e9f1f0?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