Color

#28445d

#28445d
hex#28445d
rgbrgb(40, 68, 93)
hslhsl(208, 40%, 26%)
oklchoklch(0.376 0.055 246.8)
Closest name: Black Turmeric (#2c4364)Relative luminance 0.0538

Colors that go with #28445d

Teal, Sienna and 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 →

#5d4128

#285d5b · #282a5d

#5d2844 · #445d28

Split-complementary

Open in tool →

#5d282a · #5d5b28

#5b285d · #5d4128 · #2a5d28

Contrast

#28445d as textRatioAAAA largeAAAFix
Aaon white
10.12:1passpasspassPasses AAA — no fix needed.
Aaon black
2.08:1failfailfail
  • AA: use #487ba8 as the text (4.67:1)
  • AAA: use #709cc2 as the text (7.22:1)
  • AA: or shift the background to #adadad (4.51:1)
  • AAA: or shift the background to #d9d9d9 (7.17:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #28445d as the background.

Brands using this color

Fonts for this mood

#28445d reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #28445d
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 #28445d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/28445d-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