Color

#11284b

#11284b
hex#11284b
rgbrgb(17, 40, 75)
hslhsl(216, 63%, 18%)
oklchoklch(0.279 0.071 258.6)
Closest name: Midnight Ocean (#0f2d4d)Relative luminance 0.0214

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#4b3411

#11454b · #17114b

#4b1128 · #284b11

Split-complementary

Open in tool →

#4b1711 · #454b11

#4b1145 · #4b3411 · #114b17

Contrast

#11284b as textRatioAAAA largeAAAFix
Aaon white
14.7:1passpasspassPasses AAA — no fix needed.
Aaon black
1.43:1failfailfail
  • AA: use #3775d2 as the text (4.64:1)
  • AAA: use #6998dd as the text (7.14:1)
  • AA: or shift the background to #8f8f8f (4.54:1)
  • AAA: or shift the background to #b3b3b3 (7.01:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #11284b as the background.

Brands using this color

Fonts for this mood

#11284b reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #11284b
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #11284b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/11284b-9ca7c4-df5f4e-201f2d-e9f0f1?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