brandsweets

Color

#e41b1b

#e41b1b
hex#e41b1b
rgbrgb(228, 27, 27)
hslhsl(0, 79%, 50%)
oklchoklch(0.585 0.228 28.2)
Closest name: Alarm (#ec0003)Relative luminance 0.1736
WarmVividPlayfulBold
Open in palette toolCheck contrastWhat goes with it ↓

Colors that go with #e41b1b

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.

Real palettes that use #e41b1b

Netflix· brandLenovo· brandNintendo· brandWWE· brand

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →
e41b1b1be4e4

#1be4e4

Analogous

Open in tool →
e41b1be41b80e4801b

#e41b80 · #e4801b

Triadic

Open in tool →
e41b1b1be41b1b1be4

#1be41b · #1b1be4

Split-complementary

Open in tool →
e41b1b1be4801b80e4

#1be480 · #1b80e4

Tetradic

Open in tool →
e41b1b80e41b1be4e4801be4

#80e41b · #1be4e4 · #801be4

Contrast

#e41b1b as textRatioAAAA largeAAAFix
Aaon white
4.7:1passpassfail
  • AAA: use #ad1414 as the text (7.27:1)
Aaon black
4.47:1failpassfail
  • AA: use #e51f1f as the text (4.55:1)
  • AAA: use #ee6d6d as the text (7.04:1)
  • AA: or shift the background to #fcfcfc (4.58:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #e41b1b as the background.

Brands using this color

Fonts for this mood

#e41b1b reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

Warm fonts →Playful fonts →Bold fonts →
mcpConnect your agent — build around #e41b1b
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 #e41b1b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/e41b1b-c4a19c-62cb98-2d251f-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