Color

#105cfe

#105cfe
hex#105cfe
rgbrgb(16, 92, 254)
hslhsl(221, 99%, 53%)
oklchoklch(0.546 0.25 262.7)
Closest name: Blue Ribbon (#0066ff)Relative luminance 0.1492

Colors that go with #105cfe

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 →

#feb310

#10d2fe · #3c10fe

#fe105c · #5cfe10

Split-complementary

Open in tool →

#fe3c10 · #d2fe10

#fe10d2 · #feb310 · #10fe3c

Contrast

#105cfe as textRatioAAAA largeAAAFix
Aaon white
5.27:1passpassfail
  • AAA: use #0147df as the text (7.08:1)
Aaon black
3.98:1failpassfail
  • AA: use #256afe as the text (4.57:1)
  • AAA: use #6293fe as the text (7.12:1)
  • AA: or shift the background to #ededed (4.5:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #105cfe as the background.

Brands using this color

Fonts for this mood

#105cfe reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #105cfe
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 #105cfe and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/105cfe-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