Color

#5b013e

#5b013e
hex#5b013e
rgbrgb(91, 1, 62)
hslhsl(319, 98%, 18%)
oklchoklch(0.314 0.131 346.7)
Closest name: Cosmic Explorer (#551155)Relative luminance 0.0259

Colors that go with #5b013e

Crimson, Sea Green and Cream 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 →

#015b1d

#4a015b · #5b0111

#3e5b01 · #013e5b

Split-complementary

Open in tool →

#115b01 · #015b4a

#5b4a01 · #015b1d · #01115b

Contrast

#5b013e as textRatioAAAA largeAAAFix
Aaon white
13.83:1passpasspassPasses AAA — no fix needed.
Aaon black
1.52:1failfailfail
  • AA: use #de0299 as the text (4.57:1)
  • AAA: use #fd4ec6 as the text (7.08:1)
  • AA: or shift the background to #949494 (4.56:1)
  • AAA: or shift the background to #bababa (7.12:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #5b013e 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

#5b013e reads as warm, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #5b013e
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 #5b013e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/5b013e-c19fb2-74cb62-2d1f23-f0e9f1?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