Color

#0166fe

#0166fe
hex#0166fe
rgbrgb(1, 102, 254)
hslhsl(216, 99%, 50%)
oklchoklch(0.563 0.24 260.8)
Closest name: Blue Ribbon (#0066ff)Relative luminance 0.1666

Colors that go with #0166fe

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 →

#fe9901

#01e4fe · #1b01fe

#fe0166 · #66fe01

Split-complementary

Open in tool →

#fe1b01 · #e4fe01

#fe01e4 · #fe9901 · #01fe1b

Contrast

#0166fe as textRatioAAAA largeAAAFix
Aaon white
4.85:1passpassfail
  • AAA: use #0150c6 as the text (7.08:1)
Aaon black
4.33:1failpassfail
  • AA: use #0b6cfe as the text (4.59:1)
  • AAA: use #5297fe as the text (7.22:1)
  • AA: or shift the background to #f7f7f7 (4.52:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0166fe as the background.

Brands using this color

Fonts for this mood

#0166fe reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0166fe
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 #0166fe and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0166fe-9ca7c4-df5f4e-201f2d-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