Color

#338da3

#338da3
hex#338da3
rgbrgb(51, 141, 163)
hslhsl(192, 52%, 42%)
oklchoklch(0.6 0.089 217.2)
Closest name: Blue Moon (#3992a8)Relative luminance 0.224

Colors that go with #338da3

Charcoal, Copper and Crimson 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.

Real palettes that use #338da3

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#a34a33

#33a381 · #3355a3

#a3338d · #8da333

Split-complementary

Open in tool →

#a33355 · #a38133

#8133a3 · #a34a33 · #55a333

Contrast

#338da3 as textRatioAAAA largeAAAFix
Aaon white
3.83:1failpassfail
  • AA: use #2f7f93 as the text (4.59:1)
  • AAA: use #225e6d as the text (7.27:1)
  • AA: or shift the background to #1a1a1a (4.54:1)
Aaon black
5.48:1passpassfail
  • AAA: use #3ca4be as the text (7.25:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #338da3 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

#338da3 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #338da3
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 #338da3 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/338da3-a2b5be-df4e77-1f242d-e9f1ef?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