Color

#191c1f

#191c1f
hex#191c1f
rgbrgb(25, 28, 31)
hslhsl(210, 11%, 11%)
oklchoklch(0.225 0.007 248.2)
Closest name: Coco’s Black (#1c1c1a)Relative luminance 0.0114

Tints & shades

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

Harmonies

Complementary

Open in tool →

#1f1c19

#191f1f · #19191f

#1f191c · #1c1f19

Split-complementary

Open in tool →

#1f1919 · #1f1f19

#1f191f · #1f1c19 · #191f19

Contrast

#191c1f as textRatioAAAA largeAAAFix
Aaon white
17.11:1passpasspassPasses AAA — no fix needed.
Aaon black
1.23:1failfailfail
  • AA: use #6b7885 as the text (4.65:1)
  • AAA: use #8e99a4 as the text (7.24:1)
  • AA: or shift the background to #858585 (4.64:1)
  • AAA: or shift the background to #a6a6a6 (7.03:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #191c1f as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#191c1f reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #191c1f
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 #191c1f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/191c1f-9cabc4-df514e-1f202d-e9f1f1?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