Color

#337ad7

#337ad7
hex#337ad7
rgbrgb(51, 122, 215)
hslhsl(214, 67%, 52%)
oklchoklch(0.583 0.159 256.5)
Closest name: Haddock’s Sweater (#277aba)Relative luminance 0.1953

Colors that go with #337ad7

Charcoal, Crimson and Copper 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 →

#d79033

#33ccd7 · #3e33d7

#d7337a · #7ad733

Split-complementary

Open in tool →

#d73e33 · #ccd733

#d733cc · #d79033 · #33d73e

Contrast

#337ad7 as textRatioAAAA largeAAAFix
Aaon white
4.28:1failpassfail
  • AA: use #2a74d5 as the text (4.61:1)
  • AAA: use #2058a2 as the text (7.05:1)
  • AA: or shift the background to #0d0d0d (4.54:1)
Aaon black
4.91:1passpassfail
  • AAA: use #6198e0 as the text (7.08:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #337ad7 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

#337ad7 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #337ad7
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 #337ad7 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/337ad7-9ca9c4-df5a4e-1f1f2d-e9f0f1?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