Color

#5bb5dc

#5bb5dc
hex#5bb5dc
rgbrgb(91, 181, 220)
hslhsl(198, 65%, 61%)
oklchoklch(0.733 0.103 228.8)
Closest name: Blue Martini (#52b4d3)Relative luminance 0.4044

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#dc825b

#5bdcc2 · #5b75dc

#dc5bb5 · #b5dc5b

Split-complementary

Open in tool →

#dc5b75 · #dcc25b

#c25bdc · #dc825b · #75dc5b

Contrast

#5bb5dc as textRatioAAAA largeAAAFix
Aaon white
2.31:1failfailfail
  • AA: use #237da4 as the text (4.62:1)
  • AAA: use #1a5d7a as the text (7.26:1)
  • 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 #5bb5dc 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

#5bb5dc reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #5bb5dc
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #5bb5dc and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/5bb5dc-9cb3c4-df4e69-1f232d-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