Color

#1f424d

#1f424d
hex#1f424d
rgbrgb(31, 66, 77)
hslhsl(194, 43%, 21%)
oklchoklch(0.358 0.045 220.8)
Closest name: Cold and Dark (#154250)Relative luminance 0.0472

Colors that go with #1f424d

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 →

#4d291f

#1f4d40 · #1f2b4d

#4d1f42 · #424d1f

Split-complementary

Open in tool →

#4d1f2b · #4d401f

#401f4d · #4d291f · #2b4d1f

Contrast

#1f424d as textRatioAAAA largeAAAFix
Aaon white
10.8:1passpasspassPasses AAA — no fix needed.
Aaon black
1.94:1failfailfail
  • AA: use #3a7d92 as the text (4.53:1)
  • AAA: use #50a1b9 as the text (7.14:1)
  • AA: or shift the background to #a8a8a8 (4.54:1)
  • AAA: or shift the background to #d1d1d1 (7.07:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1f424d as the background.

Brands using this color

Fonts for this mood

#1f424d reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1f424d
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 #1f424d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1f424d-9cb6c4-df4e72-1f242d-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