Color

#3a6788

#3a6788
hex#3a6788
rgbrgb(58, 103, 136)
hslhsl(205, 40%, 38%)
oklchoklch(0.496 0.073 242)
Closest name: Chill of the Night (#256d8d)Relative luminance 0.1238

Tints & shades

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

Harmonies

Complementary

Open in tool →

#885a3a

#3a8881 · #3a4188

#883a67 · #67883a

Split-complementary

Open in tool →

#883a41 · #88813a

#813a88 · #885a3a · #41883a

Contrast

#3a6788 as textRatioAAAA largeAAAFix
Aaon white
6.04:1passpassfail
  • AAA: use #345c79 as the text (7.11:1)
Aaon black
3.48:1failpassfail
  • AA: use #457aa1 as the text (4.55:1)
  • AAA: use #699bbf as the text (7.04:1)
  • AA: or shift the background to #e0e0e0 (4.58:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3a6788 as the background.

Brands using this color

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

Palettes built around it

Fonts for this mood

#3a6788 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3a6788
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #3a6788 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3a6788-9cafc4-df4e58-1f212d-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