Color

#281f47

#281f47
hex#281f47
rgbrgb(40, 31, 71)
hslhsl(253, 39%, 20%)
oklchoklch(0.273 0.072 291.2)
Closest name: Midnight Velvet (#2a2243)Relative luminance 0.0189

Tints & shades

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

Harmonies

Complementary

Open in tool →

#3e471f

#1f2a47 · #3c1f47

#47281f · #1f4728

Split-complementary

Open in tool →

#473c1f · #2a471f

#471f2a · #3e471f · #1f473c

Contrast

#281f47 as textRatioAAAA largeAAAFix
Aaon white
15.25:1passpasspassPasses AAA — no fix needed.
Aaon black
1.38:1failfailfail
  • AA: use #7c6abe as the text (4.66:1)
  • AAA: use #9b8ecd as the text (7.14:1)
  • AA: or shift the background to #8c8c8c (4.53:1)
  • AAA: or shift the background to #b0b0b0 (7.03:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #281f47 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

#281f47 reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #281f47
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 #281f47 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/281f47-a99cc4-dfb84e-281f2d-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