Color

#3726f2

#3726f2
hex#3726f2
rgbrgb(55, 38, 242)
hslhsl(245, 89%, 55%)
oklchoklch(0.472 0.277 271.8)
Closest name: Blustering Blue (#4411ff)Relative luminance 0.0861

Colors that go with #3726f2

Charcoal, Cobalt Blue and Cornflower Blue 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 →

#e1f226

#267bf2 · #9d26f2

#f23726 · #26f237

Split-complementary

Open in tool →

#f29d26 · #7bf226

#f2267b · #e1f226 · #26f29d

Contrast

#3726f2 as textRatioAAAA largeAAAFix
Aaon white
7.72:1passpasspassPasses AAA — no fix needed.
Aaon black
2.72:1failfailfail
  • AA: use #6c60f6 as the text (4.64:1)
  • AAA: use #9087f8 as the text (7.01:1)
  • AA: or shift the background to #c7c7c7 (4.56:1)
  • AAA: or shift the background to #f5f5f5 (7.08:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3726f2 as the background.

Brands using this color

Fonts for this mood

#3726f2 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3726f2
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 #3726f2 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3726f2-a49cc4-dfa54e-261f2d-e9ecf1?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