Color

#317290

#317290
hex#317290
rgbrgb(49, 114, 144)
hslhsl(199, 49%, 38%)
oklchoklch(0.523 0.081 231.1)
Closest name: Astral (#376f89)Relative luminance 0.147

Colors that go with #317290

Charcoal, Royal Blue 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 →

#904f31

#31907f · #314390

#903172 · #729031

Split-complementary

Open in tool →

#903143 · #907f31

#7f3190 · #904f31 · #439031

Contrast

#317290 as textRatioAAAA largeAAAFix
Aaon white
5.33:1passpassfail
  • AAA: use #285d76 as the text (7.2:1)
Aaon black
3.94:1failpassfail
  • AA: use #377ea0 as the text (4.65:1)
  • AAA: use #509fc3 as the text (7.09:1)
  • AA: or shift the background to #ededed (4.55:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #317290 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

#317290 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #317290
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 #317290 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/317290-9cb3c4-df4e66-1f232d-e9f1f0?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