Color

#1860fb

#1860fb
hex#1860fb
rgbrgb(24, 96, 251)
hslhsl(221, 97%, 54%)
oklchoklch(0.552 0.241 262.7)
Closest name: Blue Ribbon (#0066ff)Relative luminance 0.1552

Colors that go with #1860fb

Charcoal, Crimson and Amber 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 →

#fbb318

#18d2fb · #4218fb

#fb1860 · #60fb18

Split-complementary

Open in tool →

#fb4218 · #d2fb18

#fb18d2 · #fbb318 · #18fb42

Contrast

#1860fb as textRatioAAAA largeAAAFix
Aaon white
5.12:1passpassfail
  • AAA: use #0348dd as the text (7.06:1)
Aaon black
4.1:1failpassfail
  • AA: use #276afc as the text (4.55:1)
  • AAA: use #6394fd as the text (7.18:1)
  • AA: or shift the background to #f2f2f2 (4.57:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1860fb as the background.

Brands using this color

Fonts for this mood

#1860fb reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1860fb
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 #1860fb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1860fb-9ca4c4-df6b4e-211f2d-e9eff1?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