Color

#101519

#101519
hex#101519
rgbrgb(16, 21, 25)
hslhsl(207, 22%, 8%)
oklchoklch(0.192 0.011 242.4)
Closest name: Cursed Black (#131313)Relative luminance 0.0072

Colors that go with #101519

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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#191410

#101918 · #101019

#191015 · #151910

Split-complementary

Open in tool →

#191010 · #191810

#181019 · #191410 · #101910

Contrast

#101519 as textRatioAAAA largeAAAFix
Aaon white
18.37:1passpasspassPasses AAA — no fix needed.
Aaon black
1.14:1failfailfail
  • AA: use #5b788f as the text (4.53:1)
  • AAA: use #7f99ad as the text (7.06:1)
  • AA: or shift the background to #808080 (4.65:1)
  • AAA: or shift the background to #a1a1a1 (7.11:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #101519 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#101519 reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #101519
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 #101519 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/101519-9cadc4-df4e53-1f212d-e9f1f1?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