Color

#0345bf

#0345bf
hex#0345bf
rgbrgb(3, 69, 191)
hslhsl(219, 97%, 38%)
oklchoklch(0.443 0.2 261.9)
Closest name: Denim (#2243b6)Relative luminance 0.0804

Tints & shades

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

Harmonies

Complementary

Open in tool →

#bf7d03

#03a3bf · #1f03bf

#bf0345 · #45bf03

Split-complementary

Open in tool →

#bf1f03 · #a3bf03

#bf03a3 · #bf7d03 · #03bf1f

Contrast

#0345bf as textRatioAAAA largeAAAFix
Aaon white
8.05:1passpasspassPasses AAA — no fix needed.
Aaon black
2.61:1failfailfail
  • AA: use #1d6bfc as the text (4.56:1)
  • AAA: use #5e96fd as the text (7.26:1)
  • AA: or shift the background to #c2c2c2 (4.52:1)
  • AAA: or shift the background to #f0f0f0 (7.07:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0345bf 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

#0345bf reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0345bf
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 #0345bf and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0345bf-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