Color

#1d24aa

#1d24aa
hex#1d24aa
rgbrgb(29, 36, 170)
hslhsl(237, 71%, 39%)
oklchoklch(0.373 0.205 269.1)
Closest name: Blue Hour (#0034ab)Relative luminance 0.0443

Colors that go with #1d24aa

Charcoal, Steel Blue and 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 →

#aaa31d

#1d6baa · #5c1daa

#aa1d24 · #24aa1d

Split-complementary

Open in tool →

#aa5c1d · #6baa1d

#aa1d6b · #aaa31d · #1daa5c

Contrast

#1d24aa as textRatioAAAA largeAAAFix
Aaon white
11.14:1passpasspassPasses AAA — no fix needed.
Aaon black
1.89:1failfailfail
  • AA: use #6269e4 as the text (4.66:1)
  • AAA: use #898eeb as the text (7.13:1)
  • AA: or shift the background to #a6a6a6 (4.58:1)
  • AAA: or shift the background to #cfcfcf (7.15:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1d24aa 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

#1d24aa reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1d24aa
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 #1d24aa and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1d24aa-9f9cc4-df924e-251f2d-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