Color

#3c8bc3

#3c8bc3
hex#3c8bc3
rgbrgb(60, 139, 195)
hslhsl(205, 53%, 50%)
oklchoklch(0.613 0.115 242.8)
Closest name: steelblue (#4682b4)Relative luminance 0.2337

Colors that go with #3c8bc3

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 →

#c3743c

#3cc3b8 · #3c47c3

#c33c8b · #8bc33c

Split-complementary

Open in tool →

#c33c47 · #c3b83c

#b83cc3 · #c3743c · #47c33c

Contrast

#3c8bc3 as textRatioAAAA largeAAAFix
Aaon white
3.7:1failpassfail
  • AA: use #357aac as the text (4.63:1)
  • AAA: use #285c81 as the text (7.15:1)
  • AA: or shift the background to #1c1c1c (4.6:1)
Aaon black
5.67:1passpassfail
  • AAA: use #5b9dcd as the text (7.15:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3c8bc3 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

#3c8bc3 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3c8bc3
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 #3c8bc3 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3c8bc3-9cafc4-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