Color

#101718

#101718
hex#101718
rgbrgb(16, 23, 24)
hslhsl(188, 20%, 8%)
oklchoklch(0.198 0.011 207)
Closest name: Black Stallion (#0e191c)Relative luminance 0.0079

Tints & shades

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

Harmonies

Complementary

Open in tool →

#181110

#101815 · #101318

#181017 · #171810

Split-complementary

Open in tool →

#181013 · #181510

#151018 · #181110 · #131810

Contrast

#101718 as textRatioAAAA largeAAAFix
Aaon white
18.14:1passpasspassPasses AAA — no fix needed.
Aaon black
1.16:1failfailfail
  • AA: use #567b81 as the text (4.55:1)
  • AAA: use #759da3 as the text (7.11:1)
  • AA: or shift the background to #808080 (4.59:1)
  • AAA: or shift the background to #a1a1a1 (7.02:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #101718 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#101718 reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #101718
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 #101718 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/101718-a2b7be-df4e81-1f252d-e9f1ee?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