Color

#17151e

#17151e
hex#17151e
rgbrgb(23, 21, 30)
hslhsl(253, 18%, 10%)
oklchoklch(0.202 0.018 294.9)
Closest name: Eigengrau (#16161d)Relative luminance 0.0081

Tints & shades

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

Harmonies

Complementary

Open in tool →

#1c1e15

#15181e · #1b151e

#1e1715 · #151e17

Split-complementary

Open in tool →

#1e1b15 · #181e15

#1e1518 · #1c1e15 · #151e1b

Contrast

#17151e as textRatioAAAA largeAAAFix
Aaon white
18.07:1passpasspassPasses AAA — no fix needed.
Aaon black
1.16:1failfailfail
  • AA: use #786f9b as the text (4.55:1)
  • AAA: use #9a93b4 as the text (7.21:1)
  • AA: or shift the background to #808080 (4.57:1)
  • AAA: or shift the background to #a3a3a3 (7.16:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #17151e as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#17151e reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #17151e
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 #17151e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/17151e-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