Color

#e70d15

#e70d15
hex#e70d15
rgbrgb(231, 13, 21)
hslhsl(358, 89%, 48%)
oklchoklch(0.586 0.236 28.1)
Closest name: Alarm (#ec0003)Relative luminance 0.1733

Colors that go with #e70d15

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 →

#0de7e0

#e70d82 · #e7730d

#15e70d · #0d15e7

Split-complementary

Open in tool →

#0de773 · #0d82e7

#82e70d · #0de7e0 · #730de7

Contrast

#e70d15 as textRatioAAAA largeAAAFix
Aaon white
4.7:1passpassfail
  • AAA: use #b20a10 as the text (7.13:1)
Aaon black
4.47:1failpassfail
  • AA: use #ec0e15 as the text (4.64:1)
  • AAA: use #f66a6e as the text (7.21:1)
  • 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 #e70d15 as the background.

Brands using this color

Fonts for this mood

#e70d15 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #e70d15
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 #e70d15 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/e70d15-c49f9c-62cb95-2d251f-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