Color

#1d16df

#1d16df
hex#1d16df
rgbrgb(29, 22, 223)
hslhsl(242, 82%, 48%)
oklchoklch(0.425 0.272 267.5)
Closest name: Brutally Blue (#0022dd)Relative luminance 0.0616

Colors that go with #1d16df

Charcoal, Crimson and Cobalt 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 →

#d8df16

#1674df · #8116df

#df1d16 · #16df1d

Split-complementary

Open in tool →

#df8116 · #74df16

#df1674 · #d8df16 · #16df81

Contrast

#1d16df as textRatioAAAA largeAAAFix
Aaon white
9.41:1passpasspassPasses AAA — no fix needed.
Aaon black
2.23:1failfailfail
  • AA: use #6661ef as the text (4.52:1)
  • AAA: use #8e8bf4 as the text (7.15:1)
  • AA: or shift the background to #b5b5b5 (4.59:1)
  • AAA: or shift the background to #e0e0e0 (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 #1d16df 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

#1d16df reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1d16df
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 #1d16df and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1d16df-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