Color

#105eb1

#105eb1
hex#105eb1
rgbrgb(16, 94, 177)
hslhsl(211, 83%, 38%)
oklchoklch(0.486 0.15 254.8)
Closest name: Denim (#1560bd)Relative luminance 0.1129

Colors that go with #105eb1

Charcoal, Crimson and Sienna 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 →

#b16410

#10afb1 · #1310b1

#b1105e · #5eb110

Split-complementary

Open in tool →

#b11310 · #afb110

#b110af · #b16410 · #10b113

Contrast

#105eb1 as textRatioAAAA largeAAAFix
Aaon white
6.45:1passpassfail
  • AAA: use #0f57a3 as the text (7.21:1)
Aaon black
3.26:1failpassfail
  • AA: use #1475db as the text (4.6:1)
  • AAA: use #4999ee as the text (7.07:1)
  • AA: or shift the background to #d9d9d9 (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 #105eb1 as the background.

Brands using this color

Fonts for this mood

#105eb1 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #105eb1
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 #105eb1 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/105eb1-9cabc4-df534e-1f202d-e9f1f1?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