Color

#11257e

#11257e
hex#11257e
rgbrgb(17, 37, 126)
hslhsl(229, 76%, 28%)
oklchoklch(0.32 0.151 266.7)
Closest name: Below the Surface (#0a2f7c)Relative luminance 0.0295

Colors that go with #11257e

Charcoal, 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 →

#7e6a11

#115b7e · #34117e

#7e1125 · #257e11

Split-complementary

Open in tool →

#7e3411 · #5b7e11

#7e115b · #7e6a11 · #117e34

Contrast

#11257e as textRatioAAAA largeAAAFix
Aaon white
13.21:1passpasspassPasses AAA — no fix needed.
Aaon black
1.59:1failfailfail
  • AA: use #506ce7 as the text (4.64:1)
  • AAA: use #7d91ed as the text (7.15:1)
  • AA: or shift the background to #999999 (4.64:1)
  • AAA: or shift the background to #bdbdbd (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 #11257e as the background.

Brands using this color

Fonts for this mood

#11257e reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #11257e
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 #11257e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/11257e-9c9fc4-df7e4e-231f2d-e9eef1?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