Color

#ef3225

#ef3225
hex#ef3225
rgbrgb(239, 50, 37)
hslhsl(4, 86%, 54%)
oklchoklch(0.619 0.225 29.3)
Closest name: Arcade Fire (#ee3311)Relative luminance 0.2077

Tints & shades

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

Harmonies

Complementary

Open in tool →

#25e1ef

#ef257c · #ef9725

#25ef32 · #3225ef

Split-complementary

Open in tool →

#25ef97 · #257cef

#7cef25 · #25e1ef · #9725ef

Contrast

#ef3225 as textRatioAAAA largeAAAFix
Aaon white
4.08:1failpassfail
  • AA: use #e82011 as the text (4.52:1)
  • AAA: use #af180d as the text (7.1:1)
  • AA: or shift the background to #141414 (4.52:1)
Aaon black
5.15:1passpassfail
  • AAA: use #f36c62 as the text (7.13:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #ef3225 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

#ef3225 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #ef3225
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 #ef3225 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/ef3225-c4a39c-62cb9f-2d261f-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