Color

#000019

#000019
hex#000019
rgbrgb(0, 0, 25)
hslhsl(240, 100%, 5%)
oklchoklch(0.096 0.067 264.1)
Closest name: Obsidian Shard (#060313)Relative luminance 0.0007

Tints & shades

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

Harmonies

Complementary

Open in tool →

#191900

#000d19 · #0d0019

#190000 · #001900

Split-complementary

Open in tool →

#190d00 · #0d1900

#19000d · #191900 · #00190d

Contrast

#000019 as textRatioAAAA largeAAAFix
Aaon white
20.71:1passpasspassPasses AAA — no fix needed.
Aaon black
1.01:1failfailfail
  • AA: use #6161ff as the text (4.66:1)
  • AAA: use #8a8aff as the text (7.16:1)
  • AA: or shift the background to #787878 (4.69:1)
  • AAA: or shift the background to #969696 (7:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #000019 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

#000019 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #000019
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #000019 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/000019-a19cc4-df994e-251f2d-e9edf1?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