Color

#2564da

#2564da
hex#2564da
rgbrgb(37, 100, 218)
hslhsl(219, 71%, 50%)
oklchoklch(0.534 0.192 261.5)
Closest name: Royal Blue (#4169e1)Relative luminance 0.1457

Colors that go with #2564da

Charcoal, Crimson 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 →

#da9b25

#25bfda · #4025da

#da2564 · #64da25

Split-complementary

Open in tool →

#da4025 · #bfda25

#da25bf · #da9b25 · #25da40

Contrast

#2564da as textRatioAAAA largeAAAFix
Aaon white
5.37:1passpassfail
  • AAA: use #1e52b3 as the text (7.21:1)
Aaon black
3.91:1failpassfail
  • AA: use #3671dd as the text (4.56:1)
  • AAA: use #6b96e6 as the text (7.13:1)
  • AA: or shift the background to #ebebeb (4.5:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2564da as the background.

Brands using this color

Fonts for this mood

#2564da reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2564da
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 #2564da and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2564da-9ca5c4-df664e-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