Color

#28415d

#28415d
hex#28415d
rgbrgb(40, 65, 93)
hslhsl(212, 40%, 26%)
oklchoklch(0.368 0.058 252.2)
Closest name: Black Turmeric (#2c4364)Relative luminance 0.0502

Colors that go with #28415d

Sea Green, Teal and Sienna 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 →

#5d4428

#285b5d · #2a285d

#5d2841 · #415d28

Split-complementary

Open in tool →

#5d2a28 · #5b5d28

#5d285b · #5d4428 · #285d2a

Contrast

#28415d as textRatioAAAA largeAAAFix
Aaon white
10.48:1passpasspassPasses AAA — no fix needed.
Aaon black
2:1failfailfail
  • AA: use #4977ab as the text (4.51:1)
  • AAA: use #7499c3 as the text (7.09:1)
  • AA: or shift the background to #ababab (4.56:1)
  • AAA: or shift the background to #d4d4d4 (7.07:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #28415d as the background.

Brands using this color

Fonts for this mood

#28415d reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #28415d
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 #28415d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/28415d-9caac4-df564e-1f202d-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