Color

#3a708d

#3a708d
hex#3a708d
rgbrgb(58, 112, 141)
hslhsl(201, 42%, 39%)
oklchoklch(0.52 0.073 234.1)
Closest name: Astral (#376f89)Relative luminance 0.1441

Colors that go with #3a708d

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 →

#8d573a

#3a8d81 · #3a468d

#8d3a70 · #708d3a

Split-complementary

Open in tool →

#8d3a46 · #8d813a

#813a8d · #8d573a · #468d3a

Contrast

#3a708d as textRatioAAAA largeAAAFix
Aaon white
5.41:1passpassfail
  • AAA: use #2f5c74 as the text (7.23:1)
Aaon black
3.88:1failpassfail
  • AA: use #407b9c as the text (4.53:1)
  • AAA: use #609dbe as the text (7.06:1)
  • AA: or shift the background to #ebebeb (4.54:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3a708d 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

#3a708d reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3a708d
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 #3a708d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3a708d-9cb1c4-df4e62-1f222d-e9f1f0?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