Color

#316c90

#316c90
hex#316c90
rgbrgb(49, 108, 144)
hslhsl(203, 49%, 38%)
oklchoklch(0.508 0.084 238.3)
Closest name: Chill of the Night (#256d8d)Relative luminance 0.1339

Colors that go with #316c90

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 →

#905631

#319085 · #313c90

#90316c · #6c9031

Split-complementary

Open in tool →

#90313c · #908531

#853190 · #905631 · #3c9031

Contrast

#316c90 as textRatioAAAA largeAAAFix
Aaon white
5.71:1passpassfail
Aaon black
3.68:1failpassfail
  • AA: use #397da7 as the text (4.67:1)
  • AAA: use #5c9ec7 as the text (7.17:1)
  • AA: or shift the background to #e6e6e6 (4.57:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #316c90 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#316c90 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #316c90
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 #316c90 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/316c90-9cb0c4-df4e5d-1f222d-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