Color

#10100a

#10100a
hex#10100a
rgbrgb(16, 16, 10)
hslhsl(60, 23%, 5%)
oklchoklch(0.171 0.012 107.6)
Closest name: Sinister (#12110e)Relative luminance 0.005

Tints & shades

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

Harmonies

Complementary

Open in tool →

#0a0a10

#100d0a · #0d100a

#0a1010 · #100a10

Split-complementary

Open in tool →

#0a0d10 · #0d0a10

#0a100d · #0a0a10 · #100a0d

Contrast

#10100a as textRatioAAAA largeAAAFix
Aaon white
19.08:1passpasspassPasses AAA — no fix needed.
Aaon black
1.1:1failfailfail
  • AA: use #77774b as the text (4.52:1)
  • AAA: use #9a9a60 as the text (7.17:1)
  • AA: or shift the background to #7d7d7d (4.64:1)
  • AAA: or shift the background to #9e9e9e (7.12:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #10100a as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#10100a reads as muted, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #10100a
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 #10100a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/10100a-bbbea2-4e94df-272d1f-f1ede9?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