Color

#347be5

#347be5
hex#347be5
rgbrgb(52, 123, 229)
hslhsl(216, 77%, 55%)
oklchoklch(0.595 0.176 258.6)
Closest name: Blue Öyster Cult (#5577ee)Relative luminance 0.2055

Colors that go with #347be5

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 →

#e59e34

#34d3e5 · #4634e5

#e5347b · #7be534

Split-complementary

Open in tool →

#e54634 · #d3e534

#e534d3 · #e59e34 · #34e546

Contrast

#347be5 as textRatioAAAA largeAAAFix
Aaon white
4.11:1failpassfail
  • AA: use #2672e3 as the text (4.57:1)
  • AAA: use #1754b0 as the text (7.16:1)
  • AA: or shift the background to #121212 (4.56:1)
Aaon black
5.11:1passpassfail
  • AAA: use #6198ea 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 #347be5 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

#347be5 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #347be5
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 #347be5 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/347be5-9ca7c4-df5f4e-201f2d-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