Color

#203d56

#203d56
hex#203d56
rgbrgb(32, 61, 86)
hslhsl(208, 46%, 23%)
oklchoklch(0.35 0.056 246.3)
Closest name: Capital Blue (#1a4157)Relative luminance 0.0432

Colors that go with #203d56

Dark Olive Green, Teal 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 →

#563920

#205654 · #202156

#56203c · #3c5620

Split-complementary

Open in tool →

#562021 · #565420

#542056 · #563920 · #215620

Contrast

#203d56 as textRatioAAAA largeAAAFix
Aaon white
11.27:1passpasspassPasses AAA — no fix needed.
Aaon black
1.86:1failfailfail
  • AA: use #3f79ab as the text (4.53:1)
  • AAA: use #669ac7 as the text (7.01:1)
  • AA: or shift the background to #a6a6a6 (4.63:1)
  • AAA: or shift the background to #cccccc (7.02:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #203d56 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

#203d56 reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #203d56
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 #203d56 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/203d56-9cadc4-df4e51-1f212d-e9f1f1?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