Color

#1d2e7c

#1d2e7c
hex#1d2e7c
rgbrgb(29, 46, 124)
hslhsl(229, 62%, 30%)
oklchoklch(0.341 0.134 268.7)
Closest name: Below the Surface (#0a2f7c)Relative luminance 0.0367

Colors that go with #1d2e7c

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 →

#7c6b1d

#1d5e7c · #3b1d7c

#7c1d2e · #2e7c1d

Split-complementary

Open in tool →

#7c3b1d · #5e7c1d

#7c1d5e · #7c6b1d · #1d7c3b

Contrast

#1d2e7c as textRatioAAAA largeAAAFix
Aaon white
12.11:1passpasspassPasses AAA — no fix needed.
Aaon black
1.73:1failfailfail
  • AA: use #566dd7 as the text (4.56:1)
  • AAA: use #7f91e1 as the text (7.04:1)
  • AA: or shift the background to #9e9e9e (4.52:1)
  • AAA: or shift the background to #c7c7c7 (7.16:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1d2e7c 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

#1d2e7c reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1d2e7c
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 #1d2e7c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1d2e7c-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