Color

#212430

#212430
hex#212430
rgbrgb(33, 36, 48)
hslhsl(228, 19%, 16%)
oklchoklch(0.263 0.023 273.8)
Closest name: Dark (#1b2431)Relative luminance 0.018

Colors that go with #212430

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.

Real palettes that use #212430

Tints & shades

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

Harmonies

Complementary

Open in tool →

#312d21

#212c31 · #262131

#312124 · #243121

Split-complementary

Open in tool →

#312621 · #2c3121

#31212c · #312d21 · #213126

Contrast

#212430 as textRatioAAAA largeAAAFix
Aaon white
15.44:1passpasspassPasses AAA — no fix needed.
Aaon black
1.36:1failfailfail
  • AA: use #6a749a as the text (4.58:1)
  • AAA: use #8f96b3 as the text (7.18:1)
  • AA: or shift the background to #8c8c8c (4.59:1)
  • AAA: or shift the background to #b0b0b0 (7.12:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #212430 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#212430 reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #212430
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 #212430 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/212430-9c9fc4-df7c4e-231f2d-e9eff1?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