Color

#191f76

#191f76
hex#191f76
rgbrgb(25, 31, 118)
hslhsl(236, 65%, 28%)
oklchoklch(0.305 0.145 271.1)
Closest name: midnightblue (#191970)Relative luminance 0.0249

Colors that go with #191f76

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 →

#767019

#194e76 · #411976

#76191f · #1f7619

Split-complementary

Open in tool →

#764119 · #4e7619

#76194e · #767019 · #197641

Contrast

#191f76 as textRatioAAAA largeAAAFix
Aaon white
14.01:1passpasspassPasses AAA — no fix needed.
Aaon black
1.5:1failfailfail
  • AA: use #5f68dd as the text (4.51:1)
  • AAA: use #898fe6 as the text (7.14:1)
  • AA: or shift the background to #949494 (4.62:1)
  • AAA: or shift the background to #b8b8b8 (7.06:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #191f76 as the background.

Brands using this color

Fonts for this mood

#191f76 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #191f76
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 #191f76 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/191f76-9e9cc4-df8f4e-241f2d-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