Color

#3e53cc

#3e53cc
hex#3e53cc
rgbrgb(62, 83, 204)
hslhsl(231, 58%, 52%)
oklchoklch(0.5 0.188 270.5)
Closest name: God of Rain (#4466cc)Relative luminance 0.1157

Colors that go with #3e53cc

Charcoal, Sea Green 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 →

#ccb63e

#3e9acc · #6f3ecc

#cc3e53 · #53cc3e

Split-complementary

Open in tool →

#cc6f3e · #9acc3e

#cc3e9a · #ccb63e · #3ecc6f

Contrast

#3e53cc as textRatioAAAA largeAAAFix
Aaon white
6.34:1passpassfail
  • AAA: use #344ac5 as the text (7.16:1)
Aaon black
3.31:1failpassfail
  • AA: use #5a6cd3 as the text (4.52:1)
  • AAA: use #8693df as the text (7.25:1)
  • AA: or shift the background to #dbdbdb (4.58:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3e53cc as the background.

Brands using this color

Fonts for this mood

#3e53cc reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3e53cc
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 #3e53cc and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3e53cc-9c9ec4-df834e-231f2d-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