Color

#201b79

#201b79
hex#201b79
rgbrgb(32, 27, 121)
hslhsl(243, 64%, 29%)
oklchoklch(0.306 0.151 275)
Closest name: midnightblue (#191970)Relative luminance 0.0247

Colors that go with #201b79

Steel Blue, Blue and Charcoal 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 →

#75791b

#1b4579 · #4f1b79

#791f1b · #1b791f

Split-complementary

Open in tool →

#794f1b · #45791b

#791b45 · #75791b · #1b794f

Contrast

#201b79 as textRatioAAAA largeAAAFix
Aaon white
14.05:1passpasspassPasses AAA — no fix needed.
Aaon black
1.49:1failfailfail
  • AA: use #6e68de as the text (4.7:1)
  • AAA: use #928ee6 as the text (7.23:1)
  • AA: or shift the background to #949494 (4.63:1)
  • AAA: or shift the background to #b8b8b8 (7.08:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #201b79 as the background.

Brands using this color

Fonts for this mood

#201b79 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #201b79
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 #201b79 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/201b79-a39cc4-dfa04e-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