Color

#3e4dd0

#3e4dd0
hex#3e4dd0
rgbrgb(62, 77, 208)
hslhsl(234, 61%, 53%)
oklchoklch(0.492 0.2 271.7)
Closest name: Blurple (#5539cc)Relative luminance 0.1089

Colors that go with #3e4dd0

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.

Real palettes that use #3e4dd0

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#d0c23e

#3e96d0 · #793ed0

#d03e4d · #4dd03e

Split-complementary

Open in tool →

#d0793e · #96d03e

#d03e96 · #d0c23e · #3ed079

Contrast

#3e4dd0 as textRatioAAAA largeAAAFix
Aaon white
6.61:1passpassfail
  • AAA: use #3645ce as the text (7.24:1)
Aaon black
3.18:1failpassfail
  • AA: use #5f6bd8 as the text (4.58:1)
  • AAA: use #8891e2 as the text (7.2:1)
  • AA: or shift the background to #d6d6d6 (4.55:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3e4dd0 as the background.

Brands using this color

Fonts for this mood

#3e4dd0 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3e4dd0
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 #3e4dd0 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3e4dd0-9d9cc4-df8a4e-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