Color

#281c30

#281c30
hex#281c30
rgbrgb(40, 28, 48)
hslhsl(276, 26%, 15%)
oklchoklch(0.251 0.04 311.1)
Closest name: Black Velvet (#222233)Relative luminance 0.015

Colors that go with #281c30

Charcoal, Dark Olive Green 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 →

#24301c

#1e1c30 · #301c2e

#30281c · #1c3028

Split-complementary

Open in tool →

#2e301c · #1c301e

#301e1c · #24301c · #1c2e30

Contrast

#281c30 as textRatioAAAA largeAAAFix
Aaon white
16.17:1passpasspassPasses AAA — no fix needed.
Aaon black
1.3:1failfailfail
  • AA: use #8d68a6 as the text (4.66:1)
  • AAA: use #a88bbb as the text (7.08:1)
  • AA: or shift the background to #878787 (4.5:1)
  • AAA: or shift the background to #ababab (7.04:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #281c30 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

#281c30 reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #281c30
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 #281c30 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/281c30-b99cc4-bfcb62-2d1f2d-eae9f1?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