Color

#1c3f39

#1c3f39
hex#1c3f39
rgbrgb(28, 63, 57)
hslhsl(170, 38%, 18%)
oklchoklch(0.339 0.042 181.1)
Closest name: Botanical Night (#12403c)Relative luminance 0.041

Colors that go with #1c3f39

Sea Green, Teal and Amber 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 →

#3f1c22

#1c3f28 · #1c343f

#3a1c3f · #3f3a1c

Split-complementary

Open in tool →

#3f1c34 · #3f281c

#281c3f · #3f1c22 · #343f1c

Contrast

#1c3f39 as textRatioAAAA largeAAAFix
Aaon white
11.54:1passpasspassPasses AAA — no fix needed.
Aaon black
1.82:1failfailfail
  • AA: use #3a8276 as the text (4.63:1)
  • AAA: use #4aa596 as the text (7.11:1)
  • AA: or shift the background to #a3a3a3 (4.58:1)
  • AAA: or shift the background to #cccccc (7.19:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1c3f39 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#1c3f39 reads as dark, luxury, bold. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1c3f39
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 #1c3f39 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1c3f39-a2bebd-d459a9-1f292d-e9f1ec?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