Color

#11253b

#11253b
hex#11253b
rgbrgb(17, 37, 59)
hslhsl(211, 55%, 15%)
oklchoklch(0.26 0.049 252.2)
Closest name: Dark Eclipse (#112244)Relative luminance 0.0176

Colors that go with #11253b

Charcoal, Sea Green and Sienna 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 →

#3b2711

#113b3b · #12113b

#3b1126 · #263b11

Split-complementary

Open in tool →

#3b1211 · #3b3b11

#3b113b · #3b2711 · #113b12

Contrast

#11253b as textRatioAAAA largeAAAFix
Aaon white
15.54:1passpasspassPasses AAA — no fix needed.
Aaon black
1.35:1failfailfail
  • AA: use #3778be as the text (4.59:1)
  • AAA: use #659ad2 as the text (7.11:1)
  • AA: or shift the background to #8a8a8a (4.5:1)
  • AAA: or shift the background to #b0b0b0 (7.16:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #11253b as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#11253b reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #11253b
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 #11253b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/11253b-9cabc4-df534e-1f202d-e9f1f1?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