Color

#3145fc

#3145fc
hex#3145fc
rgbrgb(49, 69, 252)
hslhsl(234, 97%, 59%)
oklchoklch(0.516 0.265 268.6)
Closest name: C64 Blue (#003aff)Relative luminance 0.1194

Tints & shades

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

Harmonies

Complementary

Open in tool →

#fce831

#31abfc · #8231fc

#fc3145 · #45fc31

Split-complementary

Open in tool →

#fc8231 · #abfc31

#fc31ab · #fce831 · #31fc82

Contrast

#3145fc as textRatioAAAA largeAAAFix
Aaon white
6.2:1passpassfail
  • AAA: use #1d33fc as the text (7.16:1)
Aaon black
3.39:1failpassfail
  • AA: use #5465fc as the text (4.64:1)
  • AAA: use #818efd as the text (7.22:1)
  • AA: or shift the background to #dedede (4.61:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3145fc 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

#3145fc reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3145fc
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 #3145fc and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3145fc-9d9cc4-df8a4e-241f2d-e9eef1?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