Color

#1d45f7

#1d45f7
hex#1d45f7
rgbrgb(29, 69, 247)
hslhsl(229, 93%, 54%)
oklchoklch(0.504 0.264 265.6)
Closest name: C64 Blue (#003aff)Relative luminance 0.1123

Colors that go with #1d45f7

Charcoal, Crimson and Amber 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 →

#f7cf1d

#1db2f7 · #621df7

#f71d45 · #45f71d

Split-complementary

Open in tool →

#f7621d · #b2f71d

#f71db2 · #f7cf1d · #1df762

Contrast

#1d45f7 as textRatioAAAA largeAAAFix
Aaon white
6.47:1passpassfail
  • AAA: use #0e38f6 as the text (7.2:1)
Aaon black
3.25:1failpassfail
  • AA: use #4969f8 as the text (4.66:1)
  • AAA: use #758efa as the text (7.01:1)
  • AA: or shift the background to #d9d9d9 (4.58:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1d45f7 as the background.

Brands using this color

Fonts for this mood

#1d45f7 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1d45f7
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 #1d45f7 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1d45f7-9c9fc4-df7e4e-231f2d-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