Color

#121e68

#121e68
hex#121e68
rgbrgb(18, 30, 104)
hslhsl(232, 70%, 24%)
oklchoklch(0.284 0.129 268.8)
Closest name: midnightblue (#191970)Relative luminance 0.0206

Colors that go with #121e68

Charcoal, Steel Blue and Cadet 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 →

#685d12

#124968 · #321268

#68121e · #1e6812

Split-complementary

Open in tool →

#683212 · #496812

#681249 · #685d12 · #126832

Contrast

#121e68 as textRatioAAAA largeAAAFix
Aaon white
14.88:1passpasspassPasses AAA — no fix needed.
Aaon black
1.41:1failfailfail
  • AA: use #5a6ce2 as the text (4.68:1)
  • AAA: use #818fe9 as the text (7.04:1)
  • AA: or shift the background to #8f8f8f (4.6:1)
  • AAA: or shift the background to #b3b3b3 (7.1:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #121e68 as the background.

Brands using this color

Fonts for this mood

#121e68 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #121e68
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 #121e68 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/121e68-9c9dc4-df864e-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