Color

#3e5cbb

#3e5cbb
hex#3e5cbb
rgbrgb(62, 92, 187)
hslhsl(226, 50%, 49%)
oklchoklch(0.504 0.154 267.5)
Closest name: Denim (#1560bd)Relative luminance 0.1227

Colors that go with #3e5cbb

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 →

#bb9e3e

#3e9abb · #603ebb

#bb3e5c · #5cbb3e

Split-complementary

Open in tool →

#bb603e · #9abb3e

#bb3e9a · #bb9e3e · #3ebb60

Contrast

#3e5cbb as textRatioAAAA largeAAAFix
Aaon white
6.08:1passpassfail
  • AAA: use #3852a8 as the text (7.14:1)
Aaon black
3.45:1failpassfail
  • AA: use #5771c7 as the text (4.59:1)
  • AAA: use #8194d5 as the text (7.13:1)
  • AA: or shift the background to #dedede (4.52:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3e5cbb as the background.

Brands using this color

Fonts for this mood

#3e5cbb reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3e5cbb
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 #3e5cbb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3e5cbb-9ca1c4-df774e-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