Color

#ad102d

#ad102d
hex#ad102d
rgbrgb(173, 16, 45)
hslhsl(349, 83%, 37%)
oklchoklch(0.478 0.184 20.4)
Closest name: Blood Rush (#aa2222)Relative luminance 0.0944

Colors that go with #ad102d

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 →

#10ad90

#ad107b · #ad4210

#2dad10 · #102dad

Split-complementary

Open in tool →

#10ad42 · #107bad

#7bad10 · #10ad90 · #4210ad

Contrast

#ad102d as textRatioAAAA largeAAAFix
Aaon white
7.27:1passpasspassPasses AAA — no fix needed.
Aaon black
2.89:1failfailfail
  • AA: use #e5153b as the text (4.5:1)
  • AAA: use #f16a83 as the text (7.13:1)
  • AA: or shift the background to #cccccc (4.53:1)
  • AAA: or shift the background to #fcfcfc (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 #ad102d as the background.

Brands using this color

Fonts for this mood

#ad102d reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #ad102d
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 #ad102d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/ad102d-c49c9f-62cb85-2d231f-f1e9ee?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