Color

#cf3a3a

#cf3a3a
hex#cf3a3a
rgbrgb(207, 58, 58)
hslhsl(0, 61%, 52%)
oklchoklch(0.572 0.186 25.3)
Closest name: Bento Box (#cc363c)Relative luminance 0.166

Colors that go with #cf3a3a

Charcoal, Royal 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 →

#3acfcf

#cf3a85 · #cf853a

#3acf3a · #3a3acf

Split-complementary

Open in tool →

#3acf85 · #3a85cf

#85cf3a · #3acfcf · #853acf

Contrast

#cf3a3a as textRatioAAAA largeAAAFix
Aaon white
4.86:1passpassfail
  • AAA: use #a42828 as the text (7.21:1)
Aaon black
4.32:1failpassfail
  • AA: use #d14242 as the text (4.57:1)
  • AAA: use #de7878 as the text (7.06:1)
  • AA: or shift the background to #f7f7f7 (4.54:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #cf3a3a as the background.

Brands using this color

Fonts for this mood

#cf3a3a reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #cf3a3a
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 #cf3a3a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/cf3a3a-c4a19c-62cb98-2d251f-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