Color

#211730

#211730
hex#211730
rgbrgb(33, 23, 48)
hslhsl(264, 35%, 14%)
oklchoklch(0.23 0.049 301.1)
Closest name: Dark Knight (#151931)Relative luminance 0.0115

Colors that go with #211730

Charcoal, Dark Olive Green and Sea Green 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 →

#263017

#171a30 · #2e1730

#302117 · #173021

Split-complementary

Open in tool →

#302e17 · #1a3017

#30171a · #263017 · #17302e

Contrast

#211730 as textRatioAAAA largeAAAFix
Aaon white
17.07:1passpasspassPasses AAA — no fix needed.
Aaon black
1.23:1failfailfail
  • AA: use #8768b6 as the text (4.69:1)
  • AAA: use #a58dc8 as the text (7.24:1)
  • AA: or shift the background to #858585 (4.63:1)
  • AAA: or shift the background to #a6a6a6 (7.01:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #211730 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

#211730 reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #211730
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 #211730 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/211730-b19cc4-dfd34e-2b1f2d-e9eaf1?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