Color

#ec2304

#ec2304
hex#ec2304
rgbrgb(236, 35, 4)
hslhsl(8, 97%, 47%)
oklchoklch(0.603 0.233 31)
Closest name: Arcade Fire (#ee3311)Relative luminance 0.1904

Colors that go with #ec2304

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 →

#04cdec

#ec0459 · #ec9704

#04ec23 · #2304ec

Split-complementary

Open in tool →

#04ec97 · #0459ec

#59ec04 · #04cdec · #9704ec

Contrast

#ec2304 as textRatioAAAA largeAAAFix
Aaon white
4.37:1failpassfail
  • AA: use #e72204 as the text (4.54:1)
  • AAA: use #b01a03 as the text (7.01:1)
  • AA: or shift the background to #0a0a0a (4.53:1)
Aaon black
4.81:1passpassfail
  • AAA: use #fc664f 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 #ec2304 as the background.

Brands using this color

Fonts for this mood

#ec2304 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #ec2304
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 #ec2304 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/ec2304-c4a69c-62cba6-2d271f-f1e9ec?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