Color

#28375c

#28375c
hex#28375c
rgbrgb(40, 55, 92)
hslhsl(223, 39%, 26%)
oklchoklch(0.343 0.068 266.2)
Closest name: Deep Sea Base (#2c2c57)Relative luminance 0.0396

Tints & shades

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

Harmonies

Complementary

Open in tool →

#5c4e28

#28515c · #34285c

#5c2837 · #375c28

Split-complementary

Open in tool →

#5c3428 · #515c28

#5c2851 · #5c4e28 · #285c34

Contrast

#28375c as textRatioAAAA largeAAAFix
Aaon white
11.72:1passpasspassPasses AAA — no fix needed.
Aaon black
1.79:1failfailfail
  • AA: use #5873b6 as the text (4.54:1)
  • AAA: use #8397c9 as the text (7.24:1)
  • AA: or shift the background to #a1a1a1 (4.54:1)
  • AAA: or shift the background to #c9c9c9 (7.08:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #28375c 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

#28375c reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #28375c
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 #28375c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/28375c-9ca3c4-df704e-211f2d-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