Color

#3d6c8a

#3d6c8a
hex#3d6c8a
rgbrgb(61, 108, 138)
hslhsl(203, 39%, 39%)
oklchoklch(0.511 0.07 238.3)
Closest name: Astral (#376f89)Relative luminance 0.1355

Tints & shades

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

Harmonies

Complementary

Open in tool →

#8a5a3d

#3d8a81 · #3d468a

#8a3d6c · #6c8a3d

Split-complementary

Open in tool →

#8a3d46 · #8a813d

#813d8a · #8a5a3d · #468a3d

Contrast

#3d6c8a as textRatioAAAA largeAAAFix
Aaon white
5.66:1passpassfail
  • AAA: use #335c75 as the text (7.17:1)
Aaon black
3.71:1failpassfail
  • AA: use #447a9c as the text (4.51:1)
  • AAA: use #6a9ebe as the text (7.25:1)
  • AA: or shift the background to #e6e6e6 (4.53:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3d6c8a 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

#3d6c8a reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3d6c8a
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 #3d6c8a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3d6c8a-9cb0c4-df4e5d-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