Color

#191b1f

#191b1f
hex#191b1f
rgbrgb(25, 27, 31)
hslhsl(220, 11%, 11%)
oklchoklch(0.222 0.008 264.4)
Closest name: Coco’s Black (#1c1c1a)Relative luminance 0.0109

Tints & shades

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

Harmonies

Complementary

Open in tool →

#1f1d19

#191e1f · #1a191f

#1f191b · #1b1f19

Split-complementary

Open in tool →

#1f1a19 · #1e1f19

#1f191e · #1f1d19 · #191f1a

Contrast

#191b1f as textRatioAAAA largeAAAFix
Aaon white
17.24:1passpasspassPasses AAA — no fix needed.
Aaon black
1.22:1failfailfail
  • AA: use #6d7688 as the text (4.6:1)
  • AAA: use #9198a6 as the text (7.25:1)
  • AA: or shift the background to #858585 (4.67:1)
  • AAA: or shift the background to #a6a6a6 (7.08:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #191b1f as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#191b1f reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #191b1f
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 #191b1f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/191b1f-9ca5c4-df694e-211f2d-e9f0f1?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