Color

#347fda

#347fda
hex#347fda
rgbrgb(52, 127, 218)
hslhsl(213, 69%, 53%)
oklchoklch(0.596 0.157 255.2)
Closest name: Blue Jay (#5588dd)Relative luminance 0.2097

Colors that go with #347fda

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 →

#da8f34

#34d2da · #3d34da

#da347f · #7fda34

Split-complementary

Open in tool →

#da3d34 · #d2da34

#da34d2 · #da8f34 · #34da3d

Contrast

#347fda as textRatioAAAA largeAAAFix
Aaon white
4.04:1failpassfail
  • AA: use #2774d3 as the text (4.64:1)
  • AAA: use #1d589f as the text (7.12:1)
  • AA: or shift the background to #141414 (4.56:1)
Aaon black
5.19:1passpassfail
  • AAA: use #609ae2 as the text (7.22:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #347fda as the background.

Brands using this color

Fonts for this mood

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

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

tool url/palettes/new/347fda-9ca9c4-df584e-1f202d-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