Color

#ff333a

#ff333a
hex#ff333a
rgbrgb(255, 51, 58)
hslhsl(358, 100%, 60%)
oklchoklch(0.65 0.236 25.5)
Closest name: Blood Burst (#ff474c)Relative luminance 0.2393

Tints & shades

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

Harmonies

Complementary

Open in tool →

#33fff8

#ff33a0 · #ff9233

#3aff33 · #333aff

Split-complementary

Open in tool →

#33ff92 · #33a0ff

#a0ff33 · #33fff8 · #9233ff

Contrast

#ff333a as textRatioAAAA largeAAAFix
Aaon white
3.63:1failpassfail
  • AA: use #eb0008 as the text (4.63:1)
  • AAA: use #b30006 as the text (7.19:1)
  • AA: or shift the background to #1f1f1f (4.54:1)
Aaon black
5.79:1passpassfail
  • AAA: use #ff6166 as the text (7.15:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #ff333a as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#ff333a reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #ff333a
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 #ff333a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/ff333a-c49f9c-62cb95-2d251f-f1e9ed?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