Color

#3365fa

#3365fa
hex#3365fa
rgbrgb(51, 101, 250)
hslhsl(225, 95%, 59%)
oklchoklch(0.567 0.229 265.3)
Closest name: Bluerocratic (#1f66ff)Relative luminance 0.1691

Tints & shades

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

Harmonies

Complementary

Open in tool →

#fac833

#33c8fa · #6533fa

#fa3365 · #65fa33

Split-complementary

Open in tool →

#fa6533 · #c8fa33

#fa33c8 · #fac833 · #33fa65

Contrast

#3365fa as textRatioAAAA largeAAAFix
Aaon white
4.79:1passpassfail
  • AAA: use #0640ef as the text (7.03:1)
Aaon black
4.38:1failpassfail
  • AA: use #3869fa as the text (4.57:1)
  • AAA: use #6f92fb as the text (7.18:1)
  • AA: or shift the background to #fafafa (4.59:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3365fa as the background.

Brands using this color

Fonts for this mood

#3365fa reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3365fa
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 #3365fa and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3365fa-9ca1c4-df754e-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