Color

#142f9f

#142f9f
hex#142f9f
rgbrgb(20, 47, 159)
hslhsl(228, 78%, 35%)
oklchoklch(0.374 0.182 266)
Closest name: Blue Hour (#0034ab)Relative luminance 0.0468

Colors that go with #142f9f

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 →

#9f8314

#14759f · #3d149f

#9f142f · #2f9f14

Split-complementary

Open in tool →

#9f3d14 · #759f14

#9f1475 · #9f8314 · #149f3d

Contrast

#142f9f as textRatioAAAA largeAAAFix
Aaon white
10.84:1passpasspassPasses AAA — no fix needed.
Aaon black
1.94:1failfailfail
  • AA: use #4e6de9 as the text (4.69:1)
  • AAA: use #7b92ef as the text (7.2:1)
  • AA: or shift the background to #a8a8a8 (4.56:1)
  • AAA: or shift the background to #d1d1d1 (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 #142f9f as the background.

Brands using this color

Fonts for this mood

#142f9f reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #142f9f
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 #142f9f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/142f9f-9c9fc4-df7c4e-231f2d-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