Color

#e70d18

#e70d18
hex#e70d18
rgbrgb(231, 13, 24)
hslhsl(357, 89%, 48%)
oklchoklch(0.586 0.235 27.7)
Closest name: Alarm (#ec0003)Relative luminance 0.1734

Colors that go with #e70d18

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 →

#0de7dc

#e70d85 · #e7700d

#18e70d · #0d18e7

Split-complementary

Open in tool →

#0de770 · #0d85e7

#85e70d · #0de7dc · #700de7

Contrast

#e70d18 as textRatioAAAA largeAAAFix
Aaon white
4.7:1passpassfail
  • AAA: use #b20a13 as the text (7.13:1)
Aaon black
4.47:1failpassfail
  • AA: use #ec0e19 as the text (4.64:1)
  • AAA: use #f66a71 as the text (7.22:1)
  • AA: or shift the background to #fafafa (4.5:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #e70d18 as the background.

Brands using this color

Fonts for this mood

#e70d18 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #e70d18
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 #e70d18 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/e70d18-c49f9c-62cb93-2d251f-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