Color

#1d353e

#1d353e
hex#1d353e
rgbrgb(29, 53, 62)
hslhsl(196, 36%, 18%)
oklchoklch(0.313 0.034 224)
Closest name: Into the Night (#1e3642)Relative luminance 0.0316

Colors that go with #1d353e

Dark Olive Green, Sienna and Steel 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 →

#3e261d

#1d3e37 · #1d253e

#3e1d36 · #363e1d

Split-complementary

Open in tool →

#3e1d25 · #3e371d

#371d3e · #3e261d · #253e1d

Contrast

#1d353e as textRatioAAAA largeAAAFix
Aaon white
12.88:1passpasspassPasses AAA — no fix needed.
Aaon black
1.63:1failfailfail
  • AA: use #457d92 as the text (4.6:1)
  • AAA: use #63a0b6 as the text (7.23:1)
  • AA: or shift the background to #999999 (4.52:1)
  • AAA: or shift the background to #bfbfbf (7:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1d353e as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#1d353e reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1d353e
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 #1d353e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1d353e-9cb5c4-df4e6e-1f232d-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