Color

#ff2427

#ff2427
hex#ff2427
rgbrgb(255, 36, 39)
hslhsl(359, 100%, 57%)
oklchoklch(0.639 0.246 27.5)
Closest name: red (#ff0000)Relative luminance 0.2267

Tints & shades

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

Harmonies

Complementary

Open in tool →

#24fffb

#ff2495 · #ff8e24

#27ff24 · #2427ff

Split-complementary

Open in tool →

#24ff8e · #2495ff

#95ff24 · #24fffb · #8e24ff

Contrast

#ff2427 as textRatioAAAA largeAAAFix
Aaon white
3.79:1failpassfail
  • AA: use #eb0004 as the text (4.63:1)
  • AAA: use #b30003 as the text (7.2:1)
  • AA: or shift the background to #1a1a1a (4.59:1)
Aaon black
5.53:1passpassfail
  • AAA: use #ff6164 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 #ff2427 as the background.

Brands using this color

Fonts for this mood

#ff2427 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #ff2427
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 #ff2427 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/ff2427-c4a09c-62cb96-2d251f-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