Color

#0d01bc

#0d01bc
hex#0d01bc
rgbrgb(13, 1, 188)
hslhsl(244, 99%, 37%)
oklchoklch(0.363 0.247 265.8)
Closest name: mediumblue (#0000cd)Relative luminance 0.0374

Colors that go with #0d01bc

Charcoal, Crimson and Cobalt Blue 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 →

#afbc01

#0152bc · #6b01bc

#bc0d01 · #01bc0d

Split-complementary

Open in tool →

#bc6b01 · #52bc01

#bc0152 · #afbc01 · #01bc6b

Contrast

#0d01bc as textRatioAAAA largeAAAFix
Aaon white
12.02:1passpasspassPasses AAA — no fix needed.
Aaon black
1.75:1failfailfail
  • AA: use #675dfe as the text (4.57:1)
  • AAA: use #928afe as the text (7.29:1)
  • AA: or shift the background to #a1a1a1 (4.65:1)
  • AAA: or shift the background to #c7c7c7 (7.11:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0d01bc as the background.

Brands using this color

Fonts for this mood

#0d01bc reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0d01bc
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 #0d01bc and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0d01bc-a39cc4-dfa24e-261f2d-e9edf1?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