Color

#ec0f04

#ec0f04
hex#ec0f04
rgbrgb(236, 15, 4)
hslhsl(3, 97%, 47%)
oklchoklch(0.595 0.24 29.5)
Closest name: Alarm (#ec0003)Relative luminance 0.1818

Tints & shades

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

Harmonies

Complementary

Open in tool →

#04e0ec

#ec046c · #ec8304

#04ec0f · #0f04ec

Split-complementary

Open in tool →

#04ec83 · #046cec

#6cec04 · #04e0ec · #8304ec

Contrast

#ec0f04 as textRatioAAAA largeAAAFix
Aaon white
4.53:1passpassfail
  • AAA: use #b00b03 as the text (7.25:1)
Aaon black
4.64:1passpassfail
  • AAA: use #fd665e as the text (7.24:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #ec0f04 as the background.

Brands using this color

Fonts for this mood

#ec0f04 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #ec0f04
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 #ec0f04 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/ec0f04-c4a39c-62cb9d-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