Color

#171e2b

#171e2b
hex#171e2b
rgbrgb(23, 30, 43)
hslhsl(219, 30%, 13%)
oklchoklch(0.235 0.027 262.5)
Closest name: Eclipse Elixir (#1f2133)Relative luminance 0.0129

Tints & shades

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

Harmonies

Complementary

Open in tool →

#2b2417

#17282b · #1a172b

#2b171e · #1e2b17

Split-complementary

Open in tool →

#2b1a17 · #282b17

#2b1728 · #2b2417 · #172b1a

Contrast

#171e2b as textRatioAAAA largeAAAFix
Aaon white
16.71:1passpasspassPasses AAA — no fix needed.
Aaon black
1.26:1failfailfail
  • AA: use #5d77a8 as the text (4.67:1)
  • AAA: use #8498bd as the text (7.21:1)
  • AA: or shift the background to #858585 (4.53:1)
  • AAA: or shift the background to #a8a8a8 (7.03:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #171e2b as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#171e2b reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #171e2b
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 #171e2b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/171e2b-9ca5c4-df664e-211f2d-e9f0f1?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