Color

#3e8bb1

#3e8bb1
hex#3e8bb1
rgbrgb(62, 139, 177)
hslhsl(200, 48%, 47%)
oklchoklch(0.605 0.095 232.9)
Closest name: steelblue (#4682b4)Relative luminance 0.2266

Colors that go with #3e8bb1

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 →

#b1653e

#3eb19e · #3e51b1

#b13e8b · #8bb13e

Split-complementary

Open in tool →

#b13e51 · #b19e3e

#9e3eb1 · #b1653e · #51b13e

Contrast

#3e8bb1 as textRatioAAAA largeAAAFix
Aaon white
3.8:1failpassfail
  • AA: use #387c9f as the text (4.61:1)
  • AAA: use #295c75 as the text (7.29:1)
  • AA: or shift the background to #1a1a1a (4.59:1)
Aaon black
5.53:1passpassfail
  • AAA: use #559fc3 as the text (7.13:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3e8bb1 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

#3e8bb1 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3e8bb1
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 #3e8bb1 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3e8bb1-9cb2c4-df4e64-1f232d-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