Color

#314eb4

#314eb4
hex#314eb4
rgbrgb(49, 78, 180)
hslhsl(227, 57%, 45%)
oklchoklch(0.464 0.165 267.5)
Closest name: Blasphemous Blue (#3356aa)Relative luminance 0.094

Colors that go with #314eb4

Charcoal, Sea Green and Steel Blue 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 →

#b49831

#318fb4 · #5631b4

#b4314e · #4eb431

Split-complementary

Open in tool →

#b45631 · #8fb431

#b4318f · #b49831 · #31b456

Contrast

#314eb4 as textRatioAAAA largeAAAFix
Aaon white
7.29:1passpasspassPasses AAA — no fix needed.
Aaon black
2.88:1failfailfail
  • AA: use #536ed0 as the text (4.51:1)
  • AAA: use #7f93dc as the text (7.11:1)
  • AA: or shift the background to #cccccc (4.54:1)
  • AAA: or shift the background to #fcfcfc (7.11:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #314eb4 as the background.

Brands using this color

Fonts for this mood

#314eb4 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #314eb4
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 #314eb4 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/314eb4-9ca0c4-df7a4e-221f2d-e9eff1?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