Color

#28384d

#28384d
hex#28384d
rgbrgb(40, 56, 77)
hslhsl(214, 32%, 23%)
oklchoklch(0.336 0.043 255.5)
Closest name: Astral Nomad (#203943)Relative luminance 0.0382

Colors that go with #28384d

Dark Olive Green, Sea Green and Teal 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 →

#4d3d28

#284b4d · #2a284d

#4d2838 · #384d28

Split-complementary

Open in tool →

#4d2a28 · #4b4d28

#4d284b · #4d3d28 · #284d2a

Contrast

#28384d as textRatioAAAA largeAAAFix
Aaon white
11.91:1passpasspassPasses AAA — no fix needed.
Aaon black
1.76:1failfailfail
  • AA: use #5578a5 as the text (4.62:1)
  • AAA: use #7c97bb as the text (7:1)
  • AA: or shift the background to #a1a1a1 (4.61:1)
  • AAA: or shift the background to #c7c7c7 (7.05:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #28384d as the background.

Brands using this color

Fonts for this mood

#28384d reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #28384d
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 #28384d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/28384d-9ca9c4-df5a4e-1f1f2d-e9f0f1?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