Color

#516ecd

#516ecd
hex#516ecd
rgbrgb(81, 110, 205)
hslhsl(226, 55%, 56%)
oklchoklch(0.564 0.15 268.5)
Closest name: God of Rain (#4466cc)Relative luminance 0.1731

Colors that go with #516ecd

Charcoal, Sea Green 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 →

#cdb051

#51accd · #7251cd

#cd516e · #6ecd51

Split-complementary

Open in tool →

#cd7251 · #accd51

#cd51ac · #cdb051 · #51cd72

Contrast

#516ecd as textRatioAAAA largeAAAFix
Aaon white
4.71:1passpassfail
  • AAA: use #3451b2 as the text (7.08:1)
Aaon black
4.46:1failpassfail
  • AA: use #5571ce as the text (4.64:1)
  • AAA: use #8195da as the text (7.24:1)
  • AA: or shift the background to #fafafa (4.51:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #516ecd 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

#516ecd reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #516ecd
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 #516ecd and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/516ecd-9ca1c4-df774e-221f2d-e9eff1?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