Color

#201721

#201721
hex#201721
rgbrgb(32, 23, 33)
hslhsl(294, 18%, 11%)
oklchoklch(0.22 0.023 323)
Closest name: Night Demons (#201b20)Relative luminance 0.0103

Tints & shades

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

Harmonies

Complementary

Open in tool →

#182117

#1b1721 · #21171d

#212017 · #172120

Split-complementary

Open in tool →

#1d2117 · #17211b

#211b17 · #182117 · #171d21

Contrast

#201721 as textRatioAAAA largeAAAFix
Aaon white
17.41:1passpasspassPasses AAA — no fix needed.
Aaon black
1.21:1failfailfail
  • AA: use #926996 as the text (4.68:1)
  • AAA: use #ac8db0 as the text (7.19:1)
  • AA: or shift the background to #828282 (4.53:1)
  • AAA: or shift the background to #a6a6a6 (7.15:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #201721 as the background.

Brands using this color

Fonts for this mood

#201721 reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #201721
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 #201721 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/201721-c19fc0-9fcb62-2d1f29-ede9f1?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