Color

#3474ea

#3474ea
hex#3474ea
rgbrgb(52, 116, 234)
hslhsl(219, 81%, 56%)
oklchoklch(0.584 0.191 261.3)
Closest name: Bluetiful (#3c69e7)Relative luminance 0.1916

Colors that go with #3474ea

Charcoal, Crimson and Copper 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 →

#eaaa34

#34ceea · #4f34ea

#ea3474 · #74ea34

Split-complementary

Open in tool →

#ea4f34 · #ceea34

#ea34ce · #eaaa34 · #34ea4f

Contrast

#3474ea as textRatioAAAA largeAAAFix
Aaon white
4.35:1failpassfail
  • AA: use #2f70e9 as the text (4.55:1)
  • AAA: use #1451c2 as the text (7.03:1)
  • AA: or shift the background to #0a0a0a (4.56:1)
Aaon black
4.83:1passpassfail
  • AAA: use #6796ef as the text (7.19:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3474ea as the background.

Brands using this color

Fonts for this mood

#3474ea reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3474ea
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 #3474ea and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3474ea-9ca5c4-df664e-211f2d-e9f0f1?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