Color

#316690

#316690
hex#316690
rgbrgb(49, 102, 144)
hslhsl(207, 49%, 38%)
oklchoklch(0.493 0.088 244.9)
Closest name: Chill of the Night (#256d8d)Relative luminance 0.1217

Colors that go with #316690

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 →

#905c31

#31908c · #313690

#903166 · #669031

Split-complementary

Open in tool →

#903136 · #908c31

#8c3190 · #905c31 · #369031

Contrast

#316690 as textRatioAAAA largeAAAFix
Aaon white
6.12:1passpassfail
  • AAA: use #2c5b81 as the text (7.19:1)
Aaon black
3.43:1failpassfail
  • AA: use #3c7baf as the text (4.64:1)
  • AAA: use #639cca as the text (7.14:1)
  • AA: or shift the background to #dedede (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 #316690 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#316690 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #316690
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 #316690 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/316690-9cadc4-df4e53-1f212d-e9f1f1?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