Color

#3e5ca3

#3e5ca3
hex#3e5ca3
rgbrgb(62, 92, 163)
hslhsl(222, 45%, 44%)
oklchoklch(0.488 0.119 265)
Closest name: Blasphemous Blue (#3356aa)Relative luminance 0.1132

Colors that go with #3e5ca3

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 →

#a3843e

#3e8ea3 · #523ea3

#a33e5c · #5ca33e

Split-complementary

Open in tool →

#a3523e · #8ea33e

#a33e8e · #a3843e · #3ea352

Contrast

#3e5ca3 as textRatioAAAA largeAAAFix
Aaon white
6.43:1passpassfail
  • AAA: use #3a5698 as the text (7.08:1)
Aaon black
3.26:1failpassfail
  • AA: use #5575be as the text (4.67:1)
  • AAA: use #7e96ce as the text (7.14:1)
  • AA: or shift the background to #d9d9d9 (4.56:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3e5ca3 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

#3e5ca3 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3e5ca3
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 #3e5ca3 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3e5ca3-9ca3c4-df6e4e-211f2d-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