Color

#11545a

#11545a
hex#11545a
rgbrgb(17, 84, 90)
hslhsl(185, 68%, 21%)
oklchoklch(0.409 0.064 204.1)
Closest name: Abyssal Waters (#005765)Relative luminance 0.072

Colors that go with #11545a

Crimson, Steel Blue and Blue 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 →

#5a1711

#115a3c · #112f5a

#5a1154 · #545a11

Split-complementary

Open in tool →

#5a112f · #5a3c11

#3c115a · #5a1711 · #2f5a11

Contrast

#11545a as textRatioAAAA largeAAAFix
Aaon white
8.61:1passpasspassPasses AAA — no fix needed.
Aaon black
2.44:1failfailfail
  • AA: use #1b848d as the text (4.73:1)
  • AAA: use #21a4b0 as the text (7:1)
  • AA: or shift the background to #bdbdbd (4.58:1)
  • AAA: or shift the background to #e8e8e8 (7.03:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #11545a as the background.

Brands using this color

Fonts for this mood

#11545a reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #11545a
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 #11545a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/11545a-a2b8be-df4e88-1f262d-e9f1ee?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