Color

#281c4a

#281c4a
hex#281c4a
rgbrgb(40, 28, 74)
hslhsl(256, 45%, 20%)
oklchoklch(0.269 0.082 292)
Closest name: Azulado (#211d49)Relative luminance 0.0178

Colors that go with #281c4a

Charcoal, Dark Olive Green and Royal 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 →

#3e4a1c

#1c274a · #3f1c4a

#4a281c · #1c4a28

Split-complementary

Open in tool →

#4a3f1c · #274a1c

#4a1c27 · #3e4a1c · #1c4a3f

Contrast

#281c4a as textRatioAAAA largeAAAFix
Aaon white
15.5:1passpasspassPasses AAA — no fix needed.
Aaon black
1.36:1failfailfail
  • AA: use #8067c5 as the text (4.66:1)
  • AAA: use #9f8cd4 as the text (7.18:1)
  • AA: or shift the background to #8c8c8c (4.61:1)
  • AAA: or shift the background to #b0b0b0 (7.15:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #281c4a as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Palettes built around it

Fonts for this mood

#281c4a reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #281c4a
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 #281c4a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/281c4a-ab9cc4-dfbf4e-291f2d-e9ebf1?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