Color

#1d2ffc

#1d2ffc
hex#1d2ffc
rgbrgb(29, 47, 252)
hslhsl(235, 97%, 55%)
oklchoklch(0.482 0.287 266.5)
Closest name: C64 Blue (#003aff)Relative luminance 0.0932

Colors that go with #1d2ffc

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 →

#fce91d

#1d9ffc · #7a1dfc

#fc1d2f · #2ffc1d

Split-complementary

Open in tool →

#fc7a1d · #9ffc1d

#fc1d9f · #fce91d · #1dfc7a

Contrast

#1d2ffc as textRatioAAAA largeAAAFix
Aaon white
7.33:1passpasspassPasses AAA — no fix needed.
Aaon black
2.86:1failfailfail
  • AA: use #5462fc as the text (4.53:1)
  • AAA: use #818cfd as the text (7.1:1)
  • AA: or shift the background to #cccccc (4.57:1)
  • AAA: or shift the background to #fafafa (7.02:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1d2ffc as the background.

Brands using this color

Fonts for this mood

#1d2ffc reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1d2ffc
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 #1d2ffc and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1d2ffc-9e9cc4-df8d4e-241f2d-e9eef1?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