Color

#01015a

#01015a
hex#01015a
rgbrgb(1, 1, 90)
hslhsl(240, 98%, 18%)
oklchoklch(0.213 0.145 264.7)
Closest name: Ravenclaw (#0a0555)Relative luminance 0.0077

Colors that go with #01015a

Charcoal, Steel Blue and 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.

Real palettes that use #01015a

Tints & shades

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

Harmonies

Complementary

Open in tool →

#5b5b01

#012e5b · #2e015b

#5b0101 · #015b01

Split-complementary

Open in tool →

#5b2e01 · #2e5b01

#5b012e · #5b5b01 · #015b2e

Contrast

#01015a as textRatioAAAA largeAAAFix
Aaon white
18.21:1passpasspassPasses AAA — no fix needed.
Aaon black
1.15:1failfailfail
  • AA: use #6262fd as the text (4.68:1)
  • AAA: use #8b8bfe as the text (7.22:1)
  • AA: or shift the background to #808080 (4.61:1)
  • AAA: or shift the background to #a1a1a1 (7.05:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #01015a as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#01015a reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #01015a
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 #01015a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/01015a-a19cc4-df994e-251f2d-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