Color

#0b012d

#0b012d
hex#0b012d
rgbrgb(11, 1, 45)
hslhsl(254, 96%, 9%)
oklchoklch(0.152 0.085 284.1)
Closest name: Midnight (#03012d)Relative luminance 0.0028

Colors that go with #0b012d

Charcoal, Royal Blue and Rust 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 →

#232d01

#010d2d · #21012d

#2d0b01 · #012d0b

Split-complementary

Open in tool →

#2d2101 · #0d2d01

#2d010d · #232d01 · #012d21

Contrast

#0b012d as textRatioAAAA largeAAAFix
Aaon white
19.88:1passpasspassPasses AAA — no fix needed.
Aaon black
1.06:1failfailfail
  • AA: use #7c55fc as the text (4.56:1)
  • AAA: use #9f82fc as the text (7.07:1)
  • AA: or shift the background to #787878 (4.5:1)
  • AAA: or shift the background to #9c9c9c (7.24:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0b012d 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

#0b012d reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0b012d
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 #0b012d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0b012d-aa9cc4-dfbb4e-291f2d-e9ebf1?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