Color

#131b19

#131b19
hex#131b19
rgbrgb(19, 27, 25)
hslhsl(165, 17%, 9%)
oklchoklch(0.213 0.012 178.1)
Closest name: Black Stallion (#0e191c)Relative luminance 0.0099

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#1b1315

#131b15 · #13191b

#19131b · #1b1913

Split-complementary

Open in tool →

#1b1319 · #1b1513

#15131b · #1b1315 · #191b13

Contrast

#131b19 as textRatioAAAA largeAAAFix
Aaon white
17.52:1passpasspassPasses AAA — no fix needed.
Aaon black
1.2:1failfailfail
  • AA: use #597d74 as the text (4.61:1)
  • AAA: use #769e94 as the text (7.09:1)
  • AA: or shift the background to #828282 (4.56:1)
  • AAA: or shift the background to #a6a6a6 (7.2:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #131b19 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#131b19 reads as muted, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #131b19
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #131b19 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/131b19-a2beba-d459b3-1f2b2d-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