Color

#e10e2b

#e10e2b
hex#e10e2b
rgbrgb(225, 14, 43)
hslhsl(352, 88%, 47%)
oklchoklch(0.577 0.229 24.4)
Closest name: Angry Tomato (#d82029)Relative luminance 0.165

Colors that go with #e10e2b

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 →

#0ee1c5

#e10e94 · #e15c0e

#2be10e · #0e2be1

Split-complementary

Open in tool →

#0ee15c · #0e94e1

#94e10e · #0ee1c5 · #5c0ee1

Contrast

#e10e2b as textRatioAAAA largeAAAFix
Aaon white
4.88:1passpassfail
  • AAA: use #b10b21 as the text (7.14:1)
Aaon black
4.3:1failpassfail
  • AA: use #eb0f2c as the text (4.64:1)
  • AAA: use #f56679 as the text (7.06:1)
  • AA: or shift the background to #f7f7f7 (4.56:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #e10e2b as the background.

Brands using this color

Fonts for this mood

#e10e2b reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #e10e2b
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 #e10e2b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/e10e2b-c49c9d-62cb8a-2d231f-f1e9ee?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