Color

#100019

#100019
hex#100019
rgbrgb(16, 0, 25)
hslhsl(278, 100%, 5%)
oklchoklch(0.131 0.065 313.5)
Closest name: Glossy Black (#110011)Relative luminance 0.0018

Tints & shades

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

Harmonies

Complementary

Open in tool →

#091900

#030019 · #190016

#191000 · #001910

Split-complementary

Open in tool →

#161900 · #001903

#190300 · #091900 · #001619

Contrast

#100019 as textRatioAAAA largeAAAFix
Aaon white
20.27:1passpasspassPasses AAA — no fix needed.
Aaon black
1.04:1failfailfail
  • AA: use #af24ff as the text (4.52:1)
  • AAA: use #c96bff as the text (7.03:1)
  • AA: or shift the background to #787878 (4.59:1)
  • AAA: or shift the background to #999999 (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 #100019 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

#100019 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #100019
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 #100019 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/100019-ba9cc4-bbcb62-2d1f2c-ebe9f1?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