Color

#1f2323

#1f2323
hex#1f2323
rgbrgb(31, 35, 35)
hslhsl(180, 6%, 13%)
oklchoklch(0.252 0.006 196.8)
Closest name: Underworld (#1e231c)Relative luminance 0.0161

Tints & shades

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

Harmonies

Complementary

Open in tool →

#231f1f

#1f2321 · #1f2123

#231f23 · #23231f

Split-complementary

Open in tool →

#231f21 · #23211f

#211f23 · #231f1f · #21231f

Contrast

#1f2323 as textRatioAAAA largeAAAFix
Aaon white
15.87:1passpasspassPasses AAA — no fix needed.
Aaon black
1.32:1failfailfail
  • AA: use #697777 as the text (4.51:1)
  • AAA: use #8b9898 as the text (7.04:1)
  • AA: or shift the background to #8a8a8a (4.6:1)
  • AAA: or shift the background to #adadad (7.07:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1f2323 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#1f2323 reads as neutral, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1f2323
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 #1f2323 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1f2323-a2beb0-c859d4-1f2d2b-eaf1e9?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