Color

#ff0033

#ff0033
hex#ff0033
rgbrgb(255, 0, 51)
hslhsl(348, 100%, 50%)
oklchoklch(0.631 0.255 23.6)
Closest name: red (#ff0000)Relative luminance 0.215

Tints & shades

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

Harmonies

Complementary

Open in tool →

#00ffcc

#ff00b3 · #ff4d00

#33ff00 · #0033ff

Split-complementary

Open in tool →

#00ff4c · #00b3ff

#b3ff00 · #00ffcc · #4c00ff

Contrast

#ff0033 as textRatioAAAA largeAAAFix
Aaon white
3.96:1failpassfail
  • AA: use #eb002f as the text (4.59:1)
  • AAA: use #b30024 as the text (7.14:1)
  • AA: or shift the background to #171717 (4.52:1)
Aaon black
5.3:1passpassfail
  • AAA: use #ff5c7c as the text (7.07:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #ff0033 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

#ff0033 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #ff0033
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 #ff0033 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/ff0033-c49c9f-62cb83-2d231f-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