Color

#01355b

#01355b
hex#01355b
rgbrgb(1, 53, 91)
hslhsl(205, 98%, 18%)
oklchoklch(0.32 0.084 247.4)
Closest name: Beyond the Stars (#0a3251)Relative luminance 0.0331

Colors that go with #01355b

Crimson, Royal Blue and Teal 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 →

#5b2601

#015b53 · #01085b

#5b0135 · #355b01

Split-complementary

Open in tool →

#5b0108 · #5b5301

#53015b · #5b2601 · #085b01

Contrast

#01355b as textRatioAAAA largeAAAFix
Aaon white
12.64:1passpasspassPasses AAA — no fix needed.
Aaon black
1.66:1failfailfail
  • AA: use #027acf as the text (4.69:1)
  • AAA: use #129bfd as the text (7.13:1)
  • AA: or shift the background to #9c9c9c (4.6:1)
  • AAA: or shift the background to #c2c2c2 (7.1:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #01355b as the background.

Brands using this color

Fonts for this mood

#01355b reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #01355b
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 #01355b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/01355b-9cafc4-df4e58-1f212d-e9f1f0?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