Color

#011f7a

#011f7a
hex#011f7a
rgbrgb(1, 31, 122)
hslhsl(225, 98%, 24%)
oklchoklch(0.3 0.156 263.6)
Closest name: midnightblue (#191970)Relative luminance 0.0239

Colors that go with #011f7a

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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#795b01

#015b79 · #1f0179

#79011f · #1f7901

Split-complementary

Open in tool →

#791f01 · #5b7901

#79015b · #795b01 · #01791f

Contrast

#011f7a as textRatioAAAA largeAAAFix
Aaon white
14.21:1passpasspassPasses AAA — no fix needed.
Aaon black
1.48:1failfailfail
  • AA: use #3567fd as the text (4.51:1)
  • AAA: use #6d91fe as the text (7.13:1)
  • AA: or shift the background to #919191 (4.51:1)
  • AAA: or shift the background to #b8b8b8 (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 #011f7a as the background.

Brands using this color

Fonts for this mood

#011f7a reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #011f7a
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 #011f7a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/011f7a-9ca1c4-df754e-221f2d-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