Color

#c91d45

#c91d45
hex#c91d45
rgbrgb(201, 29, 69)
hslhsl(346, 75%, 45%)
oklchoklch(0.541 0.202 16)
Closest name: Akari Red (#c90b42)Relative luminance 0.1373

Colors that go with #c91d45

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 →

#1dc9a1

#c91d9b · #c94b1d

#45c91d · #1d45c9

Split-complementary

Open in tool →

#1dc94b · #1d9bc9

#9bc91d · #1dc9a1 · #4b1dc9

Contrast

#c91d45 as textRatioAAAA largeAAAFix
Aaon white
5.61:1passpassfail
  • AAA: use #aa183a as the text (7.24:1)
Aaon black
3.75:1failpassfail
  • AA: use #e02450 as the text (4.54:1)
  • AAA: use #ea6c89 as the text (7:1)
  • AA: or shift the background to #e8e8e8 (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 #c91d45 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

#c91d45 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #c91d45
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 #c91d45 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/c91d45-c49ca1-62cb80-2d221f-f1e9ef?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