Color

#1f4ead

#1f4ead
hex#1f4ead
rgbrgb(31, 78, 173)
hslhsl(220, 70%, 40%)
oklchoklch(0.451 0.161 262.3)
Closest name: Cobalt Blue (#0047ab)Relative luminance 0.0876

Colors that go with #1f4ead

Charcoal, Steel Blue 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 →

#ad7e1f

#1f96ad · #361fad

#ad1f4e · #4ead1f

Split-complementary

Open in tool →

#ad361f · #96ad1f

#ad1f96 · #ad7e1f · #1fad36

Contrast

#1f4ead as textRatioAAAA largeAAAFix
Aaon white
7.63:1passpasspassPasses AAA — no fix needed.
Aaon black
2.75:1failfailfail
  • AA: use #3c71dd as the text (4.6:1)
  • AAA: use #6c94e5 as the text (7.01:1)
  • AA: or shift the background to #c7c7c7 (4.51:1)
  • AAA: or shift the background to #f5f5f5 (7:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1f4ead as the background.

Brands using this color

Fonts for this mood

#1f4ead reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1f4ead
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 #1f4ead and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1f4ead-9ca5c4-df694e-211f2d-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