Color

#11307e

#11307e
hex#11307e
rgbrgb(17, 48, 126)
hslhsl(223, 76%, 28%)
oklchoklch(0.342 0.137 264)
Closest name: Below the Surface (#0a2f7c)Relative luminance 0.0374

Colors that go with #11307e

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 →

#7e5f11

#11667e · #29117e

#7e1130 · #307e11

Split-complementary

Open in tool →

#7e2911 · #667e11

#7e1166 · #7e5f11 · #117e29

Contrast

#11307e as textRatioAAAA largeAAAFix
Aaon white
12.01:1passpasspassPasses AAA — no fix needed.
Aaon black
1.75:1failfailfail
  • AA: use #3e6de5 as the text (4.52:1)
  • AAA: use #6f93eb as the text (7.05:1)
  • AA: or shift the background to #a1a1a1 (4.65:1)
  • AAA: or shift the background to #c7c7c7 (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 #11307e as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

#11307e reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #11307e
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 #11307e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/11307e-9ca3c4-df704e-211f2d-e9eff1?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