Color

#d40841

#d40841
hex#d40841
rgbrgb(212, 8, 65)
hslhsl(343, 93%, 43%)
oklchoklch(0.554 0.219 17.2)
Closest name: crimson (#dc143c)Relative luminance 0.1455

Colors that go with #d40841

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 →

#08d49a

#d408a7 · #d43408

#41d408 · #0841d4

Split-complementary

Open in tool →

#08d434 · #08a7d4

#a7d408 · #08d49a · #3408d4

Contrast

#d40841 as textRatioAAAA largeAAAFix
Aaon white
5.37:1passpassfail
  • AAA: use #b10637 as the text (7.12:1)
Aaon black
3.91:1failpassfail
  • AA: use #e70848 as the text (4.53:1)
  • AAA: use #f9628d as the text (7.16:1)
  • AA: or shift the background to #ebebeb (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 #d40841 as the background.

Brands using this color

Fonts for this mood

#d40841 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #d40841
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 #d40841 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/d40841-c49ca3-62cb7b-2d211f-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