Color

#345ff9

#345ff9
hex#345ff9
rgbrgb(52, 95, 249)
hslhsl(227, 94%, 59%)
oklchoklch(0.555 0.234 266.4)
Closest name: Bluerocratic (#1f66ff)Relative luminance 0.1575

Tints & shades

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

Harmonies

Complementary

Open in tool →

#f9ce34

#34c1f9 · #6c34f9

#f9345f · #5ff934

Split-complementary

Open in tool →

#f96c34 · #c1f934

#f934c1 · #f9ce34 · #34f96c

Contrast

#345ff9 as textRatioAAAA largeAAAFix
Aaon white
5.06:1passpassfail
Aaon black
4.15:1failpassfail
  • AA: use #3e67f9 as the text (4.51:1)
  • AAA: use #7492fb as the text (7.25:1)
  • AA: or shift the background to #f2f2f2 (4.52:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #345ff9 as the background.

Brands using this color

Fonts for this mood

#345ff9 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #345ff9
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 #345ff9 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/345ff9-9ca0c4-df7a4e-221f2d-e9eff1?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