Color

#9d100b

#9d100b
hex#9d100b
rgbrgb(157, 16, 11)
hslhsl(2, 87%, 33%)
oklchoklch(0.444 0.173 29)
Closest name: Bleeding Crimson (#9b1414)Relative luminance 0.0756

Colors that go with #9d100b

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 →

#0b989d

#9d0b4f · #9d590b

#0b9d10 · #100b9d

Split-complementary

Open in tool →

#0b9d59 · #0b4f9d

#4f9d0b · #0b989d · #590b9d

Contrast

#9d100b as textRatioAAAA largeAAAFix
Aaon white
8.36:1passpasspassPasses AAA — no fix needed.
Aaon black
2.51:1failfailfail
  • AA: use #ea1710 as the text (4.63:1)
  • AAA: use #f46b66 as the text (7.14:1)
  • AA: or shift the background to #bfbfbf (4.55:1)
  • AAA: or shift the background to #ebebeb (7.01:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #9d100b as the background.

Brands using this color

Fonts for this mood

#9d100b reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #9d100b
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 #9d100b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/9d100b-c4a29c-62cb9c-2d261f-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