Color

#3b52fc

#3b52fc
hex#3b52fc
rgbrgb(59, 82, 252)
hslhsl(233, 97%, 61%)
oklchoklch(0.539 0.25 269.3)
Closest name: Bluerocratic (#1f66ff)Relative luminance 0.1399

Colors that go with #3b52fc

Charcoal, Crimson and Sea Green 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 →

#fce63b

#3bb2fc · #853bfc

#fc3b52 · #52fc3b

Split-complementary

Open in tool →

#fc853b · #b2fc3b

#fc3bb2 · #fce63b · #3bfc85

Contrast

#3b52fc as textRatioAAAA largeAAAFix
Aaon white
5.53:1passpassfail
  • AAA: use #1832fb as the text (7.27:1)
Aaon black
3.8:1failpassfail
  • AA: use #4f63fc as the text (4.52:1)
  • AAA: use #8190fd as the text (7.34:1)
  • AA: or shift the background to #e8e8e8 (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 #3b52fc as the background.

Brands using this color

Fonts for this mood

#3b52fc reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3b52fc
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 #3b52fc and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3b52fc-9c9cc4-df884e-241f2d-e9eef1?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