Color

#1b07ca

#1b07ca
hex#1b07ca
rgbrgb(27, 7, 202)
hslhsl(246, 93%, 41%)
oklchoklch(0.389 0.256 267.9)
Closest name: mediumblue (#0000cd)Relative luminance 0.0465

Colors that go with #1b07ca

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 →

#b6ca07

#0755ca · #7c07ca

#ca1b07 · #07ca1b

Split-complementary

Open in tool →

#ca7c07 · #55ca07

#ca0755 · #b6ca07 · #07ca7c

Contrast

#1b07ca as textRatioAAAA largeAAAFix
Aaon white
10.88:1passpasspassPasses AAA — no fix needed.
Aaon black
1.93:1failfailfail
  • AA: use #6c5df9 as the text (4.57:1)
  • AAA: use #9489fb as the text (7.23:1)
  • AA: or shift the background to #a8a8a8 (4.58:1)
  • AAA: or shift the background to #d1d1d1 (7.13:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1b07ca as the background.

Brands using this color

Fonts for this mood

#1b07ca reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1b07ca
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 #1b07ca and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1b07ca-a59cc4-dfa74e-271f2d-e9ecf1?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