Color

#5877fd

#5877fd
hex#5877fd
rgbrgb(88, 119, 253)
hslhsl(229, 98%, 67%)
oklchoklch(0.618 0.202 269.8)
Closest name: Blue Öyster Cult (#5577ee)Relative luminance 0.2236

Tints & shades

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

Harmonies

Complementary

Open in tool →

#fddf58

#58c9fd · #8d58fd

#fd5877 · #77fd58

Split-complementary

Open in tool →

#fd8d58 · #c9fd58

#fd58c9 · #fddf58 · #58fd8d

Contrast

#5877fd as textRatioAAAA largeAAAFix
Aaon white
3.84:1failpassfail
  • AA: use #4466fd as the text (4.6:1)
  • AAA: use #0834fd as the text (7.19:1)
  • AA: or shift the background to #1a1a1a (4.54:1)
Aaon black
5.47:1passpassfail
  • AAA: use #778ffe as the text (7.14:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #5877fd 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

#5877fd reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #5877fd
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 #5877fd and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/5877fd-9c9fc4-df7e4e-231f2d-e9eef1?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