Color

#203a41

#203a41
hex#203a41
rgbrgb(32, 58, 65)
hslhsl(193, 34%, 19%)
oklchoklch(0.331 0.034 216.9)
Closest name: Royal Neptune (#1c3b42)Relative luminance 0.0371

Colors that go with #203a41

Dark Olive Green, Sienna and Steel 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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#412720

#204138 · #202941

#41203a · #3a4120

Split-complementary

Open in tool →

#412029 · #413820

#382041 · #412720 · #294120

Contrast

#203a41 as textRatioAAAA largeAAAFix
Aaon white
12.05:1passpasspassPasses AAA — no fix needed.
Aaon black
1.74:1failfailfail
  • AA: use #457d8c as the text (4.57:1)
  • AAA: use #62a0b2 as the text (7.19:1)
  • AA: or shift the background to #a1a1a1 (4.66:1)
  • AAA: or shift the background to #c7c7c7 (7.13:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #203a41 as the background.

Brands using this color

Fonts for this mood

#203a41 reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #203a41
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 #203a41 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/203a41-a2b5be-df4e75-1f242d-e9f1ef?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