Color

#010c18

#010c18
hex#010c18
rgbrgb(1, 12, 24)
hslhsl(211, 92%, 5%)
oklchoklch(0.149 0.034 245.1)
Closest name: Black Knight (#010b13)Relative luminance 0.0034

Tints & shades

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

Harmonies

Complementary

Open in tool →

#180d01

#011818 · #010118

#18010c · #0c1801

Split-complementary

Open in tool →

#180101 · #181801

#180118 · #180d01 · #011801

Contrast

#010c18 as textRatioAAAA largeAAAFix
Aaon white
19.68:1passpasspassPasses AAA — no fix needed.
Aaon black
1.07:1failfailfail
  • AA: use #0972e1 as the text (4.51:1)
  • AAA: use #4099f7 as the text (7.12:1)
  • AA: or shift the background to #7a7a7a (4.58:1)
  • AAA: or shift the background to #9c9c9c (7.17:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #010c18 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

#010c18 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #010c18
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 #010c18 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/010c18-9cabc4-df534e-1f202d-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