Color

#ff3366

#ff3366
hex#ff3366
rgbrgb(255, 51, 102)
hslhsl(345, 100%, 60%)
oklchoklch(0.656 0.235 13.3)
Closest name: Burning Fireflies (#ff1166)Relative luminance 0.2459

Colors that go with #ff3366

Charcoal, Dodger Blue and Cadet Blue lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#33ffcc

#ff33cc · #ff6633

#66ff33 · #3366ff

Split-complementary

Open in tool →

#33ff66 · #33ccff

#ccff33 · #33ffcc · #6633ff

Contrast

#ff3366 as textRatioAAAA largeAAAFix
Aaon white
3.55:1failpassfail
  • AA: use #eb003b as the text (4.57:1)
  • AAA: use #b3002d as the text (7.11:1)
  • AA: or shift the background to #212121 (4.54:1)
Aaon black
5.92:1passpassfail
  • AAA: use #ff5c85 as the text (7.12:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #ff3366 as the background.

Brands using this color

Fonts for this mood

#ff3366 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #ff3366
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #ff3366 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/ff3366-c49ca1-62cb7e-2d221f-f1e9ef?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