Color

#17211e

#17211e
hex#17211e
rgbrgb(23, 33, 30)
hslhsl(162, 18%, 11%)
oklchoklch(0.237 0.015 174.6)
Closest name: Underworld (#1e231c)Relative luminance 0.0136

Colors that go with #17211e

Charcoal, Amber and Blue lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#21171a

#172119 · #171f21

#1e1721 · #211e17

Split-complementary

Open in tool →

#21171f · #211917

#191721 · #21171a · #1f2117

Contrast

#17211e as textRatioAAAA largeAAAFix
Aaon white
16.5:1passpasspassPasses AAA — no fix needed.
Aaon black
1.27:1failfailfail
  • AA: use #587e73 as the text (4.65:1)
  • AAA: use #759f92 as the text (7.13:1)
  • AA: or shift the background to #878787 (4.59:1)
  • AAA: or shift the background to #ababab (7.19:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #17211e as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#17211e reads as muted, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #17211e
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #17211e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/17211e-a2beb9-d459b9-1f2b2d-e9f1eb?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