Color

#28366c

#28366c
hex#28366c
rgbrgb(40, 54, 108)
hslhsl(228, 46%, 29%)
oklchoklch(0.351 0.095 270)
Closest name: Atlantic Navy (#13336f)Relative luminance 0.0417

Tints & shades

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

Harmonies

Complementary

Open in tool →

#6c5e28

#28586c · #3c286c

#6c2836 · #366c28

Split-complementary

Open in tool →

#6c3c28 · #586c28

#6c2858 · #6c5e28 · #286c3c

Contrast

#28366c as textRatioAAAA largeAAAFix
Aaon white
11.45:1passpasspassPasses AAA — no fix needed.
Aaon black
1.83:1failfailfail
  • AA: use #5b70c2 as the text (4.54:1)
  • AAA: use #8494d2 as the text (7.15:1)
  • AA: or shift the background to #a3a3a3 (4.54:1)
  • AAA: or shift the background to #cccccc (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 #28366c 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

#28366c reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #28366c
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #28366c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/28366c-9c9fc4-df7c4e-231f2d-e9eff1?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