brandsweets

Color

#3369ff

#3369ff
hex#3369ff
rgbrgb(51, 105, 255)
hslhsl(224, 100%, 60%)
oklchoklch(0.578 0.23 264.8)
Closest name: Bluerocratic (#1f66ff)Relative luminance 0.1803
CoolVividTechnicalModern
Open in palette toolCheck contrast

Tints & shades

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

Harmonies

Complementary

Open in tool →
3369ffffc933

#ffc933

Analogous

Open in tool →
3369ff33cfff6333ff

#33cfff · #6333ff

Triadic

Open in tool →
3369ffff336969ff33

#ff3369 · #69ff33

Split-complementary

Open in tool →
3369ffff6333cfff33

#ff6333 · #cfff33

Tetradic

Open in tool →
3369ffff33cfffc93333ff63

#ff33cf · #ffc933 · #33ff63

Contrast

#3369ff as textRatioAAAA largeAAAFix
Aaon white
4.56:1passpassfail
  • AAA: use #0040f0 as the text (7.02:1)
Aaon black
4.61:1passpassfail
  • AAA: use #6b93ff as the text (7.24:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3369ff as the background.

Brands using this color

Fonts for this mood

#3369ff reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

Technical fonts →Modern fonts →
mcpConnect your agent — build around #3369ff
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 #3369ff and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3369ff-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