Color

#170a1e

#170a1e
hex#170a1e
rgbrgb(23, 10, 30)
hslhsl(279, 50%, 8%)
oklchoklch(0.175 0.044 312.7)
Closest name: Shot in the Dark (#1d0d1d)Relative luminance 0.0049

Colors that go with #170a1e

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 →

#111f0a

#0d0a1f · #1f0a1c

#1f170a · #0a1f17

Split-complementary

Open in tool →

#1c1f0a · #0a1f0d

#1f0d0a · #111f0a · #0a1c1f

Contrast

#170a1e as textRatioAAAA largeAAAFix
Aaon white
19.12:1passpasspassPasses AAA — no fix needed.
Aaon black
1.1:1failfailfail
  • AA: use #a057c7 as the text (4.68:1)
  • AAA: use #b781d5 as the text (7.11:1)
  • AA: or shift the background to #7d7d7d (4.64:1)
  • AAA: or shift the background to #9e9e9e (7.13:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #170a1e as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#170a1e reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #170a1e
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 #170a1e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/170a1e-b99fc1-b9cb62-2d1f2c-ebe9f1?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