Color

#191d34

#191d34
hex#191d34
rgbrgb(25, 29, 52)
hslhsl(231, 35%, 15%)
oklchoklch(0.239 0.044 275)
Closest name: Nightwalker (#161d3b)Relative luminance 0.0133

Colors that go with #191d34

Charcoal, Dark Olive Green and Sea Green 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 →

#343019

#192a34 · #221934

#34191d · #1d3419

Split-complementary

Open in tool →

#342219 · #2a3419

#34192a · #343019 · #193422

Contrast

#191d34 as textRatioAAAA largeAAAFix
Aaon white
16.58:1passpasspassPasses AAA — no fix needed.
Aaon black
1.27:1failfailfail
  • AA: use #6470b4 as the text (4.52:1)
  • AAA: use #8a93c7 as the text (7.08:1)
  • AA: or shift the background to #878787 (4.61:1)
  • AAA: or shift the background to #ababab (7.22:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #191d34 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#191d34 reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #191d34
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 #191d34 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/191d34-9c9ec4-df834e-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