Color

#1864fb

#1864fb
hex#1864fb
rgbrgb(24, 100, 251)
hslhsl(220, 97%, 54%)
oklchoklch(0.559 0.236 262.2)
Closest name: Blue Ribbon (#0066ff)Relative luminance 0.1627

Tints & shades

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

Harmonies

Complementary

Open in tool →

#fbb018

#18d6fb · #3e18fb

#fb1864 · #64fb18

Split-complementary

Open in tool →

#fb3e18 · #d6fb18

#fb18d6 · #fbb018 · #18fb3e

Contrast

#1864fb as textRatioAAAA largeAAAFix
Aaon white
4.94:1passpassfail
  • AAA: use #034ad8 as the text (7.06:1)
Aaon black
4.25:1failpassfail
  • AA: use #226bfc as the text (4.58:1)
  • AAA: use #5e93fd as the text (7.07:1)
  • AA: or shift the background to #f5f5f5 (4.53:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1864fb as the background.

Brands using this color

Fonts for this mood

#1864fb reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1864fb
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 #1864fb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1864fb-9ca5c4-df694e-211f2d-e9f0f1?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