Color

#105bb2

#105bb2
hex#105bb2
rgbrgb(16, 91, 178)
hslhsl(212, 84%, 38%)
oklchoklch(0.48 0.155 256.2)
Closest name: Denim (#1560bd)Relative luminance 0.1081

Colors that go with #105bb2

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 →

#b26610

#10adb2 · #1510b2

#b2105b · #5bb210

Split-complementary

Open in tool →

#b21510 · #adb210

#b210ad · #b26610 · #10b215

Contrast

#105bb2 as textRatioAAAA largeAAAFix
Aaon white
6.64:1passpassfail
  • AAA: use #0f57a9 as the text (7.1:1)
Aaon black
3.16:1failpassfail
  • AA: use #1474e1 as the text (4.62:1)
  • AAA: use #4d99ef as the text (7.12:1)
  • AA: or shift the background to #d6d6d6 (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 #105bb2 as the background.

Brands using this color

Fonts for this mood

#105bb2 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #105bb2
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 #105bb2 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/105bb2-9caac4-df564e-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