Color

#e01d10

#e01d10
hex#e01d10
rgbrgb(224, 29, 16)
hslhsl(4, 87%, 47%)
oklchoklch(0.578 0.225 29.7)
Closest name: Angry Tomato (#d82029)Relative luminance 0.1676

Colors that go with #e01d10

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 →

#10d2e0

#e0106a · #e08610

#10e01d · #1d10e0

Split-complementary

Open in tool →

#10e086 · #106ae0

#6ae010 · #10d2e0 · #8610e0

Contrast

#e01d10 as textRatioAAAA largeAAAFix
Aaon white
4.82:1passpassfail
  • AAA: use #b0170c as the text (7.06:1)
Aaon black
4.35:1failpassfail
  • AA: use #e51e10 as the text (4.52:1)
  • AAA: use #f46b62 as the text (7.13:1)
  • AA: or shift the background to #f7f7f7 (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 #e01d10 as the background.

Brands using this color

Fonts for this mood

#e01d10 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #e01d10
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 #e01d10 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/e01d10-c4a39c-62cb9f-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