Color

#1d2c8b

#1d2c8b
hex#1d2c8b
rgbrgb(29, 44, 139)
hslhsl(232, 65%, 33%)
oklchoklch(0.352 0.157 269.1)
Closest name: Deep Space Royal (#223382)Relative luminance 0.0393

Colors that go with #1d2c8b

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 →

#8b7c1d

#1d638b · #461d8b

#8b1d2c · #2c8b1d

Split-complementary

Open in tool →

#8b461d · #638b1d

#8b1d63 · #8b7c1d · #1d8b46

Contrast

#1d2c8b as textRatioAAAA largeAAAFix
Aaon white
11.76:1passpasspassPasses AAA — no fix needed.
Aaon black
1.79:1failfailfail
  • AA: use #5b6cdc as the text (4.62:1)
  • AAA: use #8592e5 as the text (7.24:1)
  • AA: or shift the background to #a1a1a1 (4.55:1)
  • AAA: or shift the background to #c9c9c9 (7.1:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1d2c8b 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

#1d2c8b reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1d2c8b
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 #1d2c8b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1d2c8b-9c9dc4-df864e-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