Color

#010318

#010318
hex#010318
rgbrgb(1, 3, 24)
hslhsl(235, 92%, 5%)
oklchoklch(0.115 0.052 267.1)
Closest name: Obsidian Shard (#060313)Relative luminance 0.0014

Colors that go with #010318

Charcoal, Rust and Sea Green lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#181701

#010f18 · #0b0118

#180103 · #031801

Split-complementary

Open in tool →

#180b01 · #0f1801

#18010f · #181701 · #01180b

Contrast

#010318 as textRatioAAAA largeAAAFix
Aaon white
20.44:1passpasspassPasses AAA — no fix needed.
Aaon black
1.03:1failfailfail
  • AA: use #5966f8 as the text (4.68:1)
  • AAA: use #858efa as the text (7.25:1)
  • AA: or shift the background to #787878 (4.63:1)
  • AAA: or shift the background to #999999 (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 #010318 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

#010318 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #010318
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

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

analyze #010318 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/010318-9e9cc4-df8d4e-241f2d-e9eef1?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