Color

#3565e9

#3565e9
hex#3565e9
rgbrgb(53, 101, 233)
hslhsl(224, 80%, 56%)
oklchoklch(0.553 0.207 265)
Closest name: Bluetiful (#3c69e7)Relative luminance 0.1595

Colors that go with #3565e9

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 →

#e9b935

#35bfe9 · #5f35e9

#e93565 · #65e935

Split-complementary

Open in tool →

#e95f35 · #bfe935

#e935bf · #e9b935 · #35e95f

Contrast

#3565e9 as textRatioAAAA largeAAAFix
Aaon white
5.01:1passpassfail
  • AAA: use #174ad3 as the text (7.1:1)
Aaon black
4.19:1failpassfail
  • AA: use #3e6cea as the text (4.54:1)
  • AAA: use #7192ef as the text (7.06:1)
  • AA: or shift the background to #f5f5f5 (4.6:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3565e9 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#3565e9 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3565e9
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 #3565e9 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3565e9-9ca2c4-df724e-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