Color

#140b3d

#140b3d
hex#140b3d
rgbrgb(20, 11, 61)
hslhsl(251, 69%, 14%)
oklchoklch(0.203 0.09 283.1)
Closest name: Deadly Depths (#111144)Relative luminance 0.0072

Colors that go with #140b3d

Charcoal, Sea Green and Sienna 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 →

#333c0b

#0b1b3c · #2d0b3c

#3c140b · #0b3c14

Split-complementary

Open in tool →

#3c2d0b · #1b3c0b

#3c0b1b · #333c0b · #0b3c2d

Contrast

#140b3d as textRatioAAAA largeAAAFix
Aaon white
18.34:1passpasspassPasses AAA — no fix needed.
Aaon black
1.14:1failfailfail
  • AA: use #7760e2 as the text (4.56:1)
  • AAA: use #9c8bea as the text (7.29:1)
  • AA: or shift the background to #808080 (4.64:1)
  • AAA: or shift the background to #a1a1a1 (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 #140b3d as the background.

Brands using this color

Fonts for this mood

#140b3d reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #140b3d
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 #140b3d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/140b3d-a89cc4-dfb34e-281f2d-e9ecf1?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