Color

#301e3e

#301e3e
hex#301e3e
rgbrgb(48, 30, 62)
hslhsl(274, 35%, 18%)
oklchoklch(0.274 0.061 308.8)
Closest name: Midnight Velvet (#2a2243)Relative luminance 0.019

Colors that go with #301e3e

Charcoal, Dark Olive Green and Sienna 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 →

#2c3e1e

#201e3e · #3e1e3c

#3e301e · #1e3e30

Split-complementary

Open in tool →

#3c3e1e · #1e3e20

#3e201e · #2c3e1e · #1e3c3e

Contrast

#301e3e as textRatioAAAA largeAAAFix
Aaon white
15.21:1passpasspassPasses AAA — no fix needed.
Aaon black
1.38:1failfailfail
  • AA: use #8f61b3 as the text (4.53:1)
  • AAA: use #ac8ac7 as the text (7.21:1)
  • AA: or shift the background to #8c8c8c (4.52:1)
  • AAA: or shift the background to #b0b0b0 (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 #301e3e as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#301e3e reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #301e3e
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 #301e3e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/301e3e-b79cc4-c2cb62-2d1f2d-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