Color

#3359cc

#3359cc
hex#3359cc
rgbrgb(51, 89, 204)
hslhsl(225, 60%, 50%)
oklchoklch(0.506 0.184 266)
Closest name: God of Rain (#4466cc)Relative luminance 0.1221

Tints & shades

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

Harmonies

Complementary

Open in tool →

#cca633

#33a6cc · #5933cc

#cc3359 · #59cc33

Split-complementary

Open in tool →

#cc5933 · #a6cc33

#cc33a6 · #cca633 · #33cc59

Contrast

#3359cc as textRatioAAAA largeAAAFix
Aaon white
6.1:1passpassfail
  • AAA: use #2e50b8 as the text (7.1:1)
Aaon black
3.44:1failpassfail
  • AA: use #5070d3 as the text (4.6:1)
  • AAA: use #7c95de as the text (7.21:1)
  • AA: or shift the background to #dedede (4.54:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3359cc 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

#3359cc reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3359cc
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 #3359cc and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3359cc-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