Color

#191dfa

#191dfa
hex#191dfa
rgbrgb(25, 29, 250)
hslhsl(239, 96%, 54%)
oklchoklch(0.463 0.297 266.2)
Closest name: Bluebonnet (#1c1cf0)Relative luminance 0.0799

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#faf719

#198dfa · #8619fa

#fa191d · #1dfa19

Split-complementary

Open in tool →

#fa8619 · #8dfa19

#fa198d · #faf719 · #19fa86

Contrast

#191dfa as textRatioAAAA largeAAAFix
Aaon white
8.08:1passpasspassPasses AAA — no fix needed.
Aaon black
2.6:1failfailfail
  • AA: use #5f62fc as the text (4.64:1)
  • AAA: use #8789fd as the text (7.03:1)
  • AA: or shift the background to #c2c2c2 (4.54:1)
  • AAA: or shift the background to #f0f0f0 (7.09:1)

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

Brands using this color

Fonts for this mood

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

mcpConnect your agent — build around #191dfa
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #191dfa and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/191dfa-a09cc4-df964e-251f2d-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