Color

#3e7bcc

#3e7bcc
hex#3e7bcc
rgbrgb(62, 123, 204)
hslhsl(214, 58%, 52%)
oklchoklch(0.582 0.14 256.4)
Closest name: Haddock’s Sweater (#277aba)Relative luminance 0.1955

Colors that go with #3e7bcc

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 →

#cc8e3e

#3ec2cc · #473ecc

#cc3e7b · #7bcc3e

Split-complementary

Open in tool →

#cc473e · #c2cc3e

#cc3ec2 · #cc8e3e · #3ecc47

Contrast

#3e7bcc as textRatioAAAA largeAAAFix
Aaon white
4.28:1failpassfail
  • AA: use #3676c9 as the text (4.57:1)
  • AAA: use #295999 as the text (7.04:1)
  • AA: or shift the background to #0d0d0d (4.54:1)
Aaon black
4.91:1passpassfail
  • AAA: use #6a99d7 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 #3e7bcc as the background.

Brands using this color

Fonts for this mood

#3e7bcc reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3e7bcc
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 #3e7bcc and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3e7bcc-9ca9c4-df5a4e-1f1f2d-e9f0f1?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