Color

#1e1b2c

#1e1b2c
hex#1e1b2c
rgbrgb(30, 27, 44)
hslhsl(251, 24%, 14%)
oklchoklch(0.234 0.033 291.8)
Closest name: Dark Knight (#151931)Relative luminance 0.0124

Colors that go with #1e1b2c

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 →

#292c1b

#1b212c · #271b2c

#2c1e1b · #1b2c1e

Split-complementary

Open in tool →

#2c271b · #212c1b

#2c1b21 · #292c1b · #1b2c27

Contrast

#1e1b2c as textRatioAAAA largeAAAFix
Aaon white
16.82:1passpasspassPasses AAA — no fix needed.
Aaon black
1.25:1failfailfail
  • AA: use #786ea6 as the text (4.58:1)
  • AAA: use #9890bb as the text (7.04:1)
  • AA: or shift the background to #858585 (4.56:1)
  • AAA: or shift the background to #a8a8a8 (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 #1e1b2c as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#1e1b2c reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1e1b2c
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 #1e1b2c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1e1b2c-a89cc4-dfb34e-281f2d-e9ecf1?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