Color

#103bbc

#103bbc
hex#103bbc
rgbrgb(16, 59, 188)
hslhsl(225, 84%, 40%)
oklchoklch(0.424 0.206 264.3)
Closest name: Denim (#2243b6)Relative luminance 0.0687

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#bc9110

#1091bc · #3b10bc

#bc103b · #3bbc10

Split-complementary

Open in tool →

#bc3b10 · #91bc10

#bc1091 · #bc9110 · #10bc3b

Contrast

#103bbc as textRatioAAAA largeAAAFix
Aaon white
8.85:1passpasspassPasses AAA — no fix needed.
Aaon black
2.37:1failfailfail
  • AA: use #3f6bee as the text (4.55:1)
  • AAA: use #7292f3 as the text (7.12:1)
  • AA: or shift the background to #bababa (4.56:1)
  • AAA: or shift the background to #e6e6e6 (7.09:1)

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

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

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

mcpConnect your agent — build around #103bbc
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #103bbc and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/103bbc-9ca1c4-df754e-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