Color

#1b372e

#1b372e
hex#1b372e
rgbrgb(27, 55, 46)
hslhsl(161, 34%, 16%)
oklchoklch(0.311 0.038 170.9)
Closest name: Aztec (#293432)Relative luminance 0.0316

Colors that go with #1b372e

Rust, Sea Green 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 →

#371b24

#1b3720 · #1b3237

#2e1b37 · #372e1b

Split-complementary

Open in tool →

#371b32 · #37201b

#201b37 · #371b24 · #32371b

Contrast

#1b372e as textRatioAAAA largeAAAFix
Aaon white
12.86:1passpasspassPasses AAA — no fix needed.
Aaon black
1.63:1failfailfail
  • AA: use #40826d as the text (4.63:1)
  • AAA: use #51a48a as the text (7.03:1)
  • AA: or shift the background to #999999 (4.52:1)
  • AAA: or shift the background to #c2c2c2 (7.22:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1b372e as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#1b372e reads as muted, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1b372e
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 #1b372e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1b372e-a2beb8-d459bb-1f2c2d-e9f1eb?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