Color

#302140

#302140
hex#302140
rgbrgb(48, 33, 64)
hslhsl(269, 32%, 19%)
oklchoklch(0.281 0.058 305.3)
Closest name: Midnight Velvet (#2a2243)Relative luminance 0.0209

Colors that go with #302140

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 →

#314021

#212140 · #3f2140

#403021 · #214030

Split-complementary

Open in tool →

#403f21 · #214021

#402121 · #314021 · #21403f

Contrast

#302140 as textRatioAAAA largeAAAFix
Aaon white
14.82:1passpasspassPasses AAA — no fix needed.
Aaon black
1.42:1failfailfail
  • AA: use #8b68b1 as the text (4.71:1)
  • AAA: use #a78dc4 as the text (7.25:1)
  • AA: or shift the background to #8f8f8f (4.58:1)
  • AAA: or shift the background to #b3b3b3 (7.07:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #302140 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#302140 reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #302140
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 #302140 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/302140-b49cc4-cbcb62-2c1f2d-e9e9f1?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