Color

#3d8cd6

#3d8cd6
hex#3d8cd6
rgbrgb(61, 140, 214)
hslhsl(209, 65%, 54%)
oklchoklch(0.626 0.136 249.7)
Closest name: Blue Jay (#5588dd)Relative luminance 0.246

Colors that go with #3d8cd6

Charcoal, Copper and Amber 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 →

#d6873d

#3dd6d3 · #3d40d6

#d63d8c · #8cd63d

Split-complementary

Open in tool →

#d63d40 · #d6d33d

#d33dd6 · #d6873d · #40d63d

Contrast

#3d8cd6 as textRatioAAAA largeAAAFix
Aaon white
3.55:1failpassfail
  • AA: use #2978c2 as the text (4.61:1)
  • AAA: use #1f5b93 as the text (7.06:1)
  • AA: or shift the background to #212121 (4.54:1)
Aaon black
5.92:1passpassfail
  • AAA: use #579bdb as the text (7.12:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3d8cd6 as the background.

Brands using this color

Fonts for this mood

#3d8cd6 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3d8cd6
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 #3d8cd6 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3d8cd6-9cacc4-df4e4e-1f212d-e9f1f1?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