Color

#103bc6

#103bc6
hex#103bc6
rgbrgb(16, 59, 198)
hslhsl(226, 85%, 42%)
oklchoklch(0.435 0.218 264.5)
Closest name: Lapis on Neptune (#1f22d2)Relative luminance 0.0732

Colors that go with #103bc6

Charcoal, Steel Blue 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 →

#c69c10

#1096c6 · #4110c6

#c6103b · #3bc610

Split-complementary

Open in tool →

#c64110 · #96c610

#c61096 · #c69c10 · #10c641

Contrast

#103bc6 as textRatioAAAA largeAAAFix
Aaon white
8.53:1passpasspassPasses AAA — no fix needed.
Aaon black
2.46:1failfailfail
  • AA: use #426bf0 as the text (4.59:1)
  • AAA: use #7694f4 as the text (7.31:1)
  • AA: or shift the background to #bdbdbd (4.54:1)
  • AAA: or shift the background to #ebebeb (7.15:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #103bc6 as the background.

Brands using this color

Fonts for this mood

#103bc6 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #103bc6
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 #103bc6 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/103bc6-9ca1c4-df774e-221f2d-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