Color

#2c183e

#2c183e
hex#2c183e
rgbrgb(44, 24, 62)
hslhsl(272, 44%, 17%)
oklchoklch(0.257 0.072 306.3)
Closest name: Midnight Velvet (#2a2243)Relative luminance 0.0154

Colors that go with #2c183e

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 →

#2a3e18

#1a183e · #3e183d

#3e2d18 · #183e2d

Split-complementary

Open in tool →

#3d3e18 · #183e1a

#3e1a18 · #2a3e18 · #183d3e

Contrast

#2c183e as textRatioAAAA largeAAAFix
Aaon white
16.06:1passpasspassPasses AAA — no fix needed.
Aaon black
1.31:1failfailfail
  • AA: use #925dc0 as the text (4.55:1)
  • AAA: use #ad86d0 as the text (7.1:1)
  • AA: or shift the background to #8a8a8a (4.65:1)
  • AAA: or shift the background to #adadad (7.16:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2c183e 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

#2c183e reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2c183e
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 #2c183e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2c183e-b69cc4-c5cb62-2d1f2d-eae9f1?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