Color

#0345fc

#0345fc
hex#0345fc
rgbrgb(3, 69, 252)
hslhsl(224, 98%, 50%)
oklchoklch(0.505 0.272 263.7)
Closest name: C64 Blue (#003aff)Relative luminance 0.113

Tints & shades

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

Harmonies

Complementary

Open in tool →

#fcba03

#03c2fc · #3d03fc

#fc0345 · #45fc03

Split-complementary

Open in tool →

#fc3d03 · #c2fc03

#fc03c2 · #fcba03 · #03fc3d

Contrast

#0345fc as textRatioAAAA largeAAAFix
Aaon white
6.44:1passpassfail
  • AAA: use #0241ed as the text (7.04:1)
Aaon black
3.26:1failpassfail
  • AA: use #356afd as the text (4.63:1)
  • AAA: use #6d93fe as the text (7.25:1)
  • AA: or shift the background to #d9d9d9 (4.56:1)

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

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

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

tool url/palettes/new/0345fc-9ca2c4-df724e-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