Color

#3572e3

#3572e3
hex#3572e3
rgbrgb(53, 114, 227)
hslhsl(219, 76%, 55%)
oklchoklch(0.575 0.184 261.4)
Closest name: Royal Blue (#4169e1)Relative luminance 0.1834

Colors that go with #3572e3

Charcoal, Crimson and Copper 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 →

#e3a635

#35c9e3 · #4f35e3

#e33572 · #72e335

Split-complementary

Open in tool →

#e34f35 · #c9e335

#e335c9 · #e3a635 · #35e34f

Contrast

#3572e3 as textRatioAAAA largeAAAFix
Aaon white
4.5:1failpassfail
  • AA: use #316fe3 as the text (4.65:1)
  • AAA: use #1951b8 as the text (7.22:1)
  • AA: or shift the background to #050505 (4.53:1)
Aaon black
4.67:1passpassfail
  • AAA: use #6695ea as the text (7.05:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3572e3 as the background.

Brands using this color

Fonts for this mood

#3572e3 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3572e3
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 #3572e3 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3572e3-9ca5c4-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