Color

#0537ff

#0537ff
hex#0537ff
rgbrgb(5, 55, 255)
hslhsl(228, 100%, 51%)
oklchoklch(0.49 0.288 264.3)
Closest name: C64 Blue (#003aff)Relative luminance 0.0998

Tints & shades

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

Harmonies

Complementary

Open in tool →

#ffcd05

#05b4ff · #5005ff

#ff0537 · #37ff05

Split-complementary

Open in tool →

#ff5005 · #b4ff05

#ff05b4 · #ffcd05 · #05ff50

Contrast

#0537ff as textRatioAAAA largeAAAFix
Aaon white
7.01:1passpasspassPasses AAA — no fix needed.
Aaon black
3:1failfailfail
  • AA: use #4268ff as the text (4.66:1)
  • AAA: use #7591ff as the text (7.25:1)
  • AA: or shift the background to #d1d1d1 (4.59:1)
  • AAA: or shift the background to #ffffff (7.01:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0537ff 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

#0537ff reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0537ff
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 #0537ff and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0537ff-9c9fc4-df7c4e-231f2d-e9eff1?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