Color

#1a511b

#1a511b
hex#1a511b
rgbrgb(26, 81, 27)
hslhsl(121, 51%, 21%)
oklchoklch(0.385 0.102 143.5)
Closest name: Mysterious Mixture (#0f521a)Relative luminance 0.0618

Colors that go with #1a511b

Blue, Crimson and Emerald Green 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 →

#511a50

#35511a · #1a5136

#1b1a51 · #511b1a

Split-complementary

Open in tool →

#361a51 · #511a35

#1a3551 · #511a50 · #51361a

Contrast

#1a511b as textRatioAAAA largeAAAFix
Aaon white
9.39:1passpasspassPasses AAA — no fix needed.
Aaon black
2.24:1failfailfail
  • AA: use #2c872d as the text (4.61:1)
  • AAA: use #38ad3a as the text (7.21:1)
  • AA: or shift the background to #b5b5b5 (4.58:1)
  • AAA: or shift the background to #e0e0e0 (7.11:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1a511b as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

#1a511b reads as dark, luxury, bold. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1a511b
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 #1a511b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1a511b-a2bea6-9b4edf-1f2d26-edf1e9?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