Color

#a4191d

#a4191d
hex#a4191d
rgbrgb(164, 25, 29)
hslhsl(358, 74%, 37%)
oklchoklch(0.464 0.173 26.3)
Closest name: Blood Rush (#aa2222)Relative luminance 0.0868

Colors that go with #a4191d

Royal Blue, Teal and Crimson 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 →

#19a4a0

#a41963 · #a45a19

#1da419 · #191da4

Split-complementary

Open in tool →

#19a45a · #1963a4

#63a419 · #19a4a0 · #5a19a4

Contrast

#a4191d as textRatioAAAA largeAAAFix
Aaon white
7.68:1passpasspassPasses AAA — no fix needed.
Aaon black
2.74:1failfailfail
  • AA: use #df2a30 as the text (4.51:1)
  • AAA: use #ea7175 as the text (7.12:1)
  • AA: or shift the background to #c7c7c7 (4.54:1)
  • AAA: or shift the background to #f5f5f5 (7.04:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #a4191d as the background.

Brands using this color

Fonts for this mood

#a4191d reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #a4191d
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 #a4191d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/a4191d-c49f9c-62cb95-2d251f-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