Color

#01115b

#01115b
hex#01115b
rgbrgb(1, 17, 91)
hslhsl(229, 98%, 18%)
oklchoklch(0.238 0.131 264.3)
Closest name: Interstellar Blue (#001155)Relative luminance 0.0116

Colors that go with #01115b

Charcoal, Crimson and Steel 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.

Real palettes that use #01115b

Tints & shades

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

Harmonies

Complementary

Open in tool →

#5b4a01

#013e5b · #1d015b

#5b0111 · #115b01

Split-complementary

Open in tool →

#5b1d01 · #3e5b01

#5b013e · #5b4a01 · #015b1d

Contrast

#01115b as textRatioAAAA largeAAAFix
Aaon white
17.04:1passpasspassPasses AAA — no fix needed.
Aaon black
1.23:1failfailfail
  • AA: use #4466fd as the text (4.56:1)
  • AAA: use #778ffe as the text (7.14:1)
  • AA: or shift the background to #858585 (4.62:1)
  • AAA: or shift the background to #a8a8a8 (7.17:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #01115b as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#01115b reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #01115b
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 #01115b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/01115b-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