Color

#a71f01

#a71f01
hex#a71f01
rgbrgb(167, 31, 1)
hslhsl(11, 99%, 33%)
oklchoklch(0.472 0.175 32.7)
Closest name: Blood Rush (#aa2222)Relative luminance 0.092

Colors that go with #a71f01

Royal Blue, Teal and Amber 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 →

#0189a7

#a70136 · #a77301

#01a71f · #1f01a7

Split-complementary

Open in tool →

#01a773 · #0136a7

#36a701 · #0189a7 · #7301a7

Contrast

#a71f01 as textRatioAAAA largeAAAFix
Aaon white
7.4:1passpasspassPasses AAA — no fix needed.
Aaon black
2.84:1failfailfail
  • AA: use #e42b01 as the text (4.64:1)
  • AAA: use #fe6543 as the text (7.16:1)
  • AA: or shift the background to #cccccc (4.61:1)
  • AAA: or shift the background to #fafafa (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 #a71f01 as the background.

Brands using this color

Fonts for this mood

#a71f01 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #a71f01
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 #a71f01 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/a71f01-c4a89c-62cbab-2d281f-f1e9ec?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