Color

#a3191e

#a3191e
hex#a3191e
rgbrgb(163, 25, 30)
hslhsl(358, 73%, 37%)
oklchoklch(0.462 0.172 25.9)
Closest name: Blood Rush (#aa2222)Relative luminance 0.0858

Colors that go with #a3191e

Royal Blue, Teal and Champagne 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 →

#19a39f

#a31963 · #a35a19

#1ea319 · #191ea3

Split-complementary

Open in tool →

#19a35a · #1963a3

#63a319 · #19a39f · #5a19a3

Contrast

#a3191e as textRatioAAAA largeAAAFix
Aaon white
7.73:1passpasspassPasses AAA — no fix needed.
Aaon black
2.72:1failfailfail
  • AA: use #df3035 as the text (4.61:1)
  • AAA: use #e97276 as the text (7.13:1)
  • AA: or shift the background to #c7c7c7 (4.58:1)
  • AAA: or shift the background to #f5f5f5 (7.09:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #a3191e as the background.

Brands using this color

Fonts for this mood

#a3191e reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #a3191e
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 #a3191e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/a3191e-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