Color

#282b5d

#282b5d
hex#282b5d
rgbrgb(40, 43, 93)
hslhsl(237, 40%, 26%)
oklchoklch(0.315 0.088 277.5)
Closest name: Deep Sea Base (#2c2c57)Relative luminance 0.0297

Colors that go with #282b5d

Dark Olive Green, Slate Blue and Steel 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 →

#5d5a28

#28455d · #40285d

#5d282a · #2a5d28

Split-complementary

Open in tool →

#5d4028 · #455d28

#5d2845 · #5d5a28 · #285d40

Contrast

#282b5d as textRatioAAAA largeAAAFix
Aaon white
13.18:1passpasspassPasses AAA — no fix needed.
Aaon black
1.59:1failfailfail
  • AA: use #696dbf as the text (4.54:1)
  • AAA: use #8d90ce as the text (7.01:1)
  • AA: or shift the background to #999999 (4.62:1)
  • AAA: or shift the background to #bdbdbd (7.01:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #282b5d 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

#282b5d reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #282b5d
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 #282b5d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/282b5d-9f9cc4-df924e-251f2d-e9edf1?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