Color

#1b1f19

#1b1f19
hex#1b1f19
rgbrgb(27, 31, 25)
hslhsl(100, 11%, 11%)
oklchoklch(0.233 0.013 135.1)
Closest name: Coco’s Black (#1c1c1a)Relative luminance 0.0128

Tints & shades

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

Harmonies

Complementary

Open in tool →

#1d191f

#1e1f19 · #191f1a

#191b1f · #1f191b

Split-complementary

Open in tool →

#1a191f · #1f191e

#191e1f · #1d191f · #1f1a19

Contrast

#1b1f19 as textRatioAAAA largeAAAFix
Aaon white
16.71:1passpasspassPasses AAA — no fix needed.
Aaon black
1.26:1failfailfail
  • AA: use #6a7a62 as the text (4.57:1)
  • AAA: use #8b9b82 as the text (7.11:1)
  • AA: or shift the background to #858585 (4.53:1)
  • AAA: or shift the background to #a8a8a8 (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 #1b1f19 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#1b1f19 reads as muted, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1b1f19
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 #1b1f19 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1b1f19-a8bea2-694edf-1f2d21-f0f1e9?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