Color

#517ed6

#517ed6
hex#517ed6
rgbrgb(81, 126, 214)
hslhsl(220, 62%, 58%)
oklchoklch(0.603 0.143 262.5)
Closest name: Blue Jay (#5588dd)Relative luminance 0.2153

Colors that go with #517ed6

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 →

#d6aa51

#51c0d6 · #6851d6

#d6517e · #7ed651

Split-complementary

Open in tool →

#d66851 · #c0d651

#d651c0 · #d6aa51 · #51d668

Contrast

#517ed6 as textRatioAAAA largeAAAFix
Aaon white
3.96:1failpassfail
  • AA: use #4171d2 as the text (4.65:1)
  • AAA: use #2853a9 as the text (7.24:1)
  • AA: or shift the background to #171717 (4.53:1)
Aaon black
5.31:1passpassfail
  • AAA: use #7396de as the text (7.15:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #517ed6 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

#517ed6 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #517ed6
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 #517ed6 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/517ed6-9ca5c4-df694e-211f2d-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