Color

#1fa0e5

#1fa0e5
hex#1fa0e5
rgbrgb(31, 160, 229)
hslhsl(201, 79%, 51%)
oklchoklch(0.673 0.145 239.5)
Closest name: Fresh Blue of Bel Air (#069af3)Relative luminance 0.3109

Colors that go with #1fa0e5

Charcoal, Tomato and Bronze 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 →

#e5641f

#1fe5c7 · #1f3de5

#e51fa0 · #a0e51f

Split-complementary

Open in tool →

#e51f3d · #e5c71f

#c71fe5 · #e5641f · #3de51f

Contrast

#1fa0e5 as textRatioAAAA largeAAAFix
Aaon white
2.91:1failfailfail
  • AA: use #157bb2 as the text (4.66:1)
  • AAA: use #105b84 as the text (7.36:1)
  • AA: or shift the background to #303030 (4.54:1)
  • AAA: or shift the background to #050505 (7.01:1)
Aaon black
7.22:1passpasspassPasses AAA — no fix needed.

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1fa0e5 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#1fa0e5 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1fa0e5
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 #1fa0e5 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1fa0e5-9cb1c4-df4e62-1f222d-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