Color

#10281e

#10281e
hex#10281e
rgbrgb(16, 40, 30)
hslhsl(155, 43%, 11%)
oklchoklch(0.254 0.036 164.6)
Closest name: Underworld (#1e231c)Relative luminance 0.0172

Colors that go with #10281e

Charcoal, Sea 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.

Real palettes that use #10281e

Tints & shades

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

Harmonies

Complementary

Open in tool →

#28101a

#102812 · #102628

#1e1028 · #281e10

Split-complementary

Open in tool →

#281026 · #281210

#121028 · #28101a · #262810

Contrast

#10281e as textRatioAAAA largeAAAFix
Aaon white
15.62:1passpasspassPasses AAA — no fix needed.
Aaon black
1.34:1failfailfail
  • AA: use #348362 as the text (4.57:1)
  • AAA: use #43a87e as the text (7.14:1)
  • AA: or shift the background to #8a8a8a (4.53:1)
  • AAA: or shift the background to #b0b0b0 (7.2:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #10281e 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

#10281e reads as dark, luxury, bold. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #10281e
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 #10281e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/10281e-a2beb6-d459c8-1f2d2d-e9f1ea?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