Color

#100abd

#100abd
hex#100abd
rgbrgb(16, 10, 189)
hslhsl(242, 90%, 39%)
oklchoklch(0.369 0.244 266.2)
Closest name: mediumblue (#0000cd)Relative luminance 0.04

Colors that go with #100abd

Charcoal, Crimson and Cornflower Blue 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 →

#b7bd0a

#0a5dbd · #690abd

#bd100a · #0abd10

Split-complementary

Open in tool →

#bd690a · #5dbd0a

#bd0a5d · #b7bd0a · #0abd69

Contrast

#100abd as textRatioAAAA largeAAAFix
Aaon white
11.66:1passpasspassPasses AAA — no fix needed.
Aaon black
1.8:1failfailfail
  • AA: use #645ff7 as the text (4.52:1)
  • AAA: use #8e8bf9 as the text (7.21:1)
  • AA: or shift the background to #a1a1a1 (4.51:1)
  • AAA: or shift the background to #c9c9c9 (7.04:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #100abd as the background.

Brands using this color

Fonts for this mood

#100abd reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #100abd
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 #100abd and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/100abd-a29cc4-df9e4e-261f2d-e9edf1?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