Color

#519cc8

#519cc8
hex#519cc8
rgbrgb(81, 156, 200)
hslhsl(202, 52%, 55%)
oklchoklch(0.663 0.099 236.6)
Closest name: Canadian Tuxedo (#579aca)Relative luminance 0.297

Colors that go with #519cc8

Charcoal, Peru 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 #519cc8

Tints & shades

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

Harmonies

Complementary

Open in tool →

#c87c51

#51c8b8 · #5160c8

#c8519c · #9cc851

Split-complementary

Open in tool →

#c85160 · #c8b851

#b851c8 · #c87c51 · #60c851

Contrast

#519cc8 as textRatioAAAA largeAAAFix
Aaon white
3.03:1failpassfail
  • AA: use #357da7 as the text (4.52:1)
  • AAA: use #275d7c as the text (7.14:1)
  • AA: or shift the background to #2b2b2b (4.68:1)
Aaon black
6.94:1passpassfail
  • AAA: use #549ec9 as the text (7.11:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #519cc8 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

#519cc8 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #519cc8
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 #519cc8 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/519cc8-9cb1c4-df4e5f-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