Color

#171c17

#171c17
hex#171c17
rgbrgb(23, 28, 23)
hslhsl(120, 10%, 10%)
oklchoklch(0.219 0.012 145.1)
Closest name: Coco’s Black (#1c1c1a)Relative luminance 0.0107

Tints & shades

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

Harmonies

Complementary

Open in tool →

#1c171c

#1a1c17 · #171c1a

#17171c · #1c1717

Split-complementary

Open in tool →

#1a171c · #1c171a

#171a1c · #1c171c · #1c1a17

Contrast

#171c17 as textRatioAAAA largeAAAFix
Aaon white
17.29:1passpasspassPasses AAA — no fix needed.
Aaon black
1.21:1failfailfail
  • AA: use #657b65 as the text (4.57:1)
  • AAA: use #869c86 as the text (7.11:1)
  • AA: or shift the background to #858585 (4.68:1)
  • AAA: or shift the background to #a6a6a6 (7.1:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #171c17 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#171c17 reads as muted, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #171c17
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 #171c17 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/171c17-a2bea5-994edf-1f2d25-edf1e9?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