Color

#ec0c09

#ec0c09
hex#ec0c09
rgbrgb(236, 12, 9)
hslhsl(1, 93%, 48%)
oklchoklch(0.595 0.24 29.1)
Closest name: Alarm (#ec0003)Relative luminance 0.1812

Colors that go with #ec0c09

Charcoal, Royal Blue and Sea Green 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 →

#09e8ec

#ec0977 · #ec7e09

#09ec0c · #0c09ec

Split-complementary

Open in tool →

#09ec7e · #0977ec

#77ec09 · #09e8ec · #7e09ec

Contrast

#ec0c09 as textRatioAAAA largeAAAFix
Aaon white
4.54:1passpassfail
  • AAA: use #b10906 as the text (7.21:1)
Aaon black
4.62:1passpassfail
  • AAA: use #f96462 as the text (7.03:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #ec0c09 as the background.

Brands using this color

Fonts for this mood

#ec0c09 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #ec0c09
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 #ec0c09 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/ec0c09-c4a19c-62cb9a-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