Color

#222f91

#222f91
hex#222f91
rgbrgb(34, 47, 145)
hslhsl(233, 62%, 35%)
oklchoklch(0.366 0.16 270.2)
Closest name: Depths of Night (#2c319b)Relative luminance 0.0442

Colors that go with #222f91

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 →

#918422

#226691 · #4c2291

#91222f · #2f9122

Split-complementary

Open in tool →

#914c22 · #669122

#912266 · #918422 · #22914c

Contrast

#222f91 as textRatioAAAA largeAAAFix
Aaon white
11.15:1passpasspassPasses AAA — no fix needed.
Aaon black
1.88:1failfailfail
  • AA: use #5e6cd9 as the text (4.62:1)
  • AAA: use #8792e3 as the text (7.25:1)
  • AA: or shift the background to #a6a6a6 (4.58:1)
  • AAA: or shift the background to #cfcfcf (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 #222f91 as the background.

Brands using this color

Fonts for this mood

#222f91 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #222f91
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 #222f91 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/222f91-9c9cc4-df884e-241f2d-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