Color

#308ca6

#308ca6
hex#308ca6
rgbrgb(48, 140, 166)
hslhsl(193, 55%, 42%)
oklchoklch(0.598 0.093 220.5)
Closest name: Blue Moon (#3992a8)Relative luminance 0.2214

Colors that go with #308ca6

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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#a64a30

#30a685 · #3052a6

#a6308c · #8ca630

Split-complementary

Open in tool →

#a63052 · #a68530

#8530a6 · #a64a30 · #52a630

Contrast

#308ca6 as textRatioAAAA largeAAAFix
Aaon white
3.87:1failpassfail
  • AA: use #2c7f96 as the text (4.58:1)
  • AAA: use #205e6f as the text (7.26:1)
  • AA: or shift the background to #171717 (4.63:1)
Aaon black
5.43:1passpassfail

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #308ca6 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

#308ca6 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #308ca6
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 #308ca6 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/308ca6-a2b5be-df4e75-1f242d-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