Color

#1f1c21

#1f1c21
hex#1f1c21
rgbrgb(31, 28, 33)
hslhsl(276, 8%, 12%)
oklchoklch(0.232 0.01 312)
Closest name: Night Demons (#201b20)Relative luminance 0.0123

Tints & shades

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

Harmonies

Complementary

Open in tool →

#1e211c

#1d1c21 · #211c21

#211f1c · #1c211f

Split-complementary

Open in tool →

#21211c · #1c211d

#211d1c · #1e211c · #1c2121

Contrast

#1f1c21 as textRatioAAAA largeAAAFix
Aaon white
16.85:1passpasspassPasses AAA — no fix needed.
Aaon black
1.25:1failfailfail
  • AA: use #7c7184 as the text (4.55:1)
  • AAA: use #9d94a4 as the text (7.21:1)
  • AA: or shift the background to #858585 (4.57:1)
  • AAA: or shift the background to #a8a8a8 (7.09:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1f1c21 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#1f1c21 reads as muted, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1f1c21
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 #1f1c21 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1f1c21-b99cc4-bfcb62-2d1f2d-eae9f1?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