Color

#5fb3e7

#5fb3e7
hex#5fb3e7
rgbrgb(95, 179, 231)
hslhsl(203, 74%, 64%)
oklchoklch(0.735 0.111 238)
Closest name: Cerulean (#55aaee)Relative luminance 0.4044

Colors that go with #5fb3e7

Charcoal, Dark Salmon 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 →

#e7935f

#5fe7d7 · #5f6fe7

#e75fb3 · #b3e75f

Split-complementary

Open in tool →

#e75f6f · #e7d75f

#d75fe7 · #e7935f · #6fe75f

Contrast

#5fb3e7 as textRatioAAAA largeAAAFix
Aaon white
2.31:1failfailfail
  • AA: use #1b7bb6 as the text (4.61:1)
  • AAA: use #155d8a as the text (7.08:1)
  • AA: or shift the background to #3d3d3d (4.7:1)
  • AAA: or shift the background to #1f1f1f (7.13:1)
Aaon black
9.09:1passpasspassPasses 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 #5fb3e7 as the background.

Brands using this color

Fonts for this mood

#5fb3e7 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #5fb3e7
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 #5fb3e7 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/5fb3e7-9cb0c4-df4e5d-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