Color

#170d31

#170d31
hex#170d31
rgbrgb(23, 13, 49)
hslhsl(257, 58%, 12%)
oklchoklch(0.197 0.068 291.7)
Closest name: Midnight Monarch (#1c0f33)Relative luminance 0.0069

Colors that go with #170d31

Charcoal, Royal Blue and Sea Green 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 →

#26300d

#0d1530 · #290d30

#30170d · #0d3017

Split-complementary

Open in tool →

#30290d · #15300d

#300d15 · #26300d · #0d3029

Contrast

#170d31 as textRatioAAAA largeAAAFix
Aaon white
18.45:1passpasspassPasses AAA — no fix needed.
Aaon black
1.14:1failfailfail
  • AA: use #8362d5 as the text (4.67:1)
  • AAA: use #a28ae0 as the text (7.25:1)
  • AA: or shift the background to #808080 (4.67:1)
  • AAA: or shift the background to #a1a1a1 (7.14:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #170d31 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

#170d31 reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #170d31
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 #170d31 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/170d31-ac9cc4-dfc24e-291f2d-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