Color

#1e87f1

#1e87f1
hex#1e87f1
rgbrgb(30, 135, 241)
hslhsl(210, 88%, 53%)
oklchoklch(0.623 0.183 253.7)
Closest name: dodgerblue (#1e90ff)Relative luminance 0.2395

Colors that go with #1e87f1

Charcoal, Crimson and Copper 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 →

#f1871e

#1ef1f1 · #1e1ef1

#f11e87 · #87f11e

Split-complementary

Open in tool →

#f11e1e · #f1f11e

#f11ef1 · #f1871e · #1ef11e

Contrast

#1e87f1 as textRatioAAAA largeAAAFix
Aaon white
3.63:1failpassfail
  • AA: use #0e75dd as the text (4.56:1)
  • AAA: use #0a57a3 as the text (7.23:1)
  • AA: or shift the background to #1f1f1f (4.55:1)
Aaon black
5.79:1passpassfail
  • AAA: use #3f99f3 as the text (7.06:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1e87f1 as the background.

Brands using this color

Fonts for this mood

#1e87f1 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1e87f1
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 #1e87f1 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1e87f1-9cabc4-df514e-1f202d-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