Color

#1d424e

#1d424e
hex#1d424e
rgbrgb(29, 66, 78)
hslhsl(195, 46%, 21%)
oklchoklch(0.357 0.047 221.8)
Closest name: Cold and Dark (#154250)Relative luminance 0.0471

Colors that go with #1d424e

Steel Blue, Teal and Sienna 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 →

#4e291d

#1d4e42 · #1d294e

#4e1d42 · #424e1d

Split-complementary

Open in tool →

#4e1d29 · #4e421d

#421d4e · #4e291d · #294e1d

Contrast

#1d424e as textRatioAAAA largeAAAFix
Aaon white
10.82:1passpasspassPasses AAA — no fix needed.
Aaon black
1.94:1failfailfail
  • AA: use #377d95 as the text (4.53:1)
  • AAA: use #4ca1bd as the text (7.14:1)
  • AA: or shift the background to #a8a8a8 (4.55:1)
  • AAA: or shift the background to #d1d1d1 (7.08:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1d424e as the background.

Brands using this color

Fonts for this mood

#1d424e reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1d424e
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 #1d424e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1d424e-9cb5c4-df4e70-1f242d-e9f1ef?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