Color

#20394b

#20394b
hex#20394b
rgbrgb(32, 57, 75)
hslhsl(205, 40%, 21%)
oklchoklch(0.333 0.045 241.2)
Closest name: Astral Nomad (#203943)Relative luminance 0.0374

Colors that go with #20394b

Dark Olive Green, Royal Blue and Sienna 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 →

#4b3220

#204b47 · #20244b

#4b2039 · #394b20

Split-complementary

Open in tool →

#4b2024 · #4b4720

#47204b · #4b3220 · #244b20

Contrast

#20394b as textRatioAAAA largeAAAFix
Aaon white
12.01:1passpasspassPasses AAA — no fix needed.
Aaon black
1.75:1failfailfail
  • AA: use #457aa1 as the text (4.55:1)
  • AAA: use #699bbf as the text (7.04:1)
  • 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 #20394b as the background.

Brands using this color

Fonts for this mood

#20394b reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #20394b
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 #20394b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/20394b-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