Color

#a90f16

#a90f16
hex#a90f16
rgbrgb(169, 15, 22)
hslhsl(357, 84%, 36%)
oklchoklch(0.468 0.183 26.9)
Closest name: Blood Rush (#aa2222)Relative luminance 0.0883

Colors that go with #a90f16

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 →

#0fa9a1

#a90f64 · #a9540f

#16a90f · #0f16a9

Split-complementary

Open in tool →

#0fa954 · #0f64a9

#64a90f · #0fa9a1 · #540fa9

Contrast

#a90f16 as textRatioAAAA largeAAAFix
Aaon white
7.59:1passpasspassPasses AAA — no fix needed.
Aaon black
2.77:1failfailfail
  • AA: use #eb141f as the text (4.65:1)
  • AAA: use #f26970 as the text (7.03:1)
  • AA: or shift the background to #c9c9c9 (4.58:1)
  • AAA: or shift the background to #f7f7f7 (7.08:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #a90f16 as the background.

Brands using this color

Fonts for this mood

#a90f16 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #a90f16
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 #a90f16 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/a90f16-c49f9c-62cb93-2d251f-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