Color

#140ca1

#140ca1
hex#140ca1
rgbrgb(20, 12, 161)
hslhsl(243, 86%, 34%)
oklchoklch(0.334 0.213 268)
Closest name: Dark Galaxy (#0018a8)Relative luminance 0.0298

Colors that go with #140ca1

Crimson, Steel Blue and Cobalt 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 →

#9aa10c

#0c4fa1 · #5e0ca1

#a1140c · #0ca114

Split-complementary

Open in tool →

#a15e0c · #4fa10c

#a10c4f · #9aa10c · #0ca15e

Contrast

#140ca1 as textRatioAAAA largeAAAFix
Aaon white
13.15:1passpasspassPasses AAA — no fix needed.
Aaon black
1.6:1failfailfail
  • AA: use #6a62f3 as the text (4.65:1)
  • AAA: use #8e88f6 as the text (7:1)
  • AA: or shift the background to #999999 (4.62:1)
  • AAA: or shift the background to #bfbfbf (7.15:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #140ca1 as the background.

Brands using this color

Fonts for this mood

#140ca1 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #140ca1
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 #140ca1 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/140ca1-a39cc4-dfa04e-261f2d-e9edf1?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