Color

#f21847

#f21847
hex#f21847
rgbrgb(242, 24, 71)
hslhsl(347, 89%, 52%)
oklchoklch(0.615 0.238 19)
Closest name: Barberry (#ee1133)Relative luminance 0.1999

Colors that go with #f21847

Charcoal, Dodger Blue and Steel 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 →

#18f2c2

#f218b4 · #f25518

#47f218 · #1847f2

Split-complementary

Open in tool →

#18f255 · #18b4f2

#b4f218 · #18f2c2 · #5518f2

Contrast

#f21847 as textRatioAAAA largeAAAFix
Aaon white
4.2:1failpassfail
  • AA: use #e70d3d as the text (4.64:1)
  • AAA: use #b20a2f as the text (7.05:1)
  • AA: or shift the background to #0f0f0f (4.56:1)
Aaon black
5:1passpassfail
  • AAA: use #f66584 as the text (7.11:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #f21847 as the background.

Brands using this color

Fonts for this mood

#f21847 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #f21847
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 #f21847 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/f21847-c49ca0-62cb82-2d221f-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