Color

#11515f

#11515f
hex#11515f
rgbrgb(17, 81, 95)
hslhsl(191, 70%, 22%)
oklchoklch(0.403 0.065 216.3)
Closest name: Raging Thunderstorm (#004f63)Relative luminance 0.0683

Colors that go with #11515f

Crimson, Steel Blue and Teal 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 →

#5f1f11

#115f46 · #112a5f

#5f1151 · #515f11

Split-complementary

Open in tool →

#5f112a · #5f4611

#46115f · #5f1f11 · #2a5f11

Contrast

#11515f as textRatioAAAA largeAAAFix
Aaon white
8.88:1passpasspassPasses AAA — no fix needed.
Aaon black
2.37:1failfailfail
  • AA: use #1b8198 as the text (4.64:1)
  • AAA: use #22a6c3 as the text (7.31:1)
  • AA: or shift the background to #bababa (4.57:1)
  • AAA: or shift the background to #e6e6e6 (7.11:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #11515f as the background.

Brands using this color

Fonts for this mood

#11515f reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #11515f
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 #11515f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/11515f-a2b6be-df4e7a-1f252d-e9f1ef?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