Color

#343efe

#343efe
hex#343efe
rgbrgb(52, 62, 254)
hslhsl(237, 99%, 60%)
oklchoklch(0.51 0.273 269.5)
Closest name: C64 Blue (#003aff)Relative luminance 0.1133

Tints & shades

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

Harmonies

Complementary

Open in tool →

#fef434

#34a3fe · #8f34fe

#fe343e · #3efe34

Split-complementary

Open in tool →

#fe8f34 · #a3fe34

#fe34a3 · #fef434 · #34fe8f

Contrast

#343efe as textRatioAAAA largeAAAFix
Aaon white
6.43:1passpassfail
  • AAA: use #2530fe as the text (7.16:1)
Aaon black
3.27:1failpassfail
  • AA: use #5860fe as the text (4.52:1)
  • AAA: use #858bfe as the text (7.12:1)
  • AA: or shift the background to #d9d9d9 (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 #343efe 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

#343efe reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #343efe
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #343efe and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/343efe-9f9cc4-df924e-251f2d-e9edf1?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