Color

#0a37ff

#0a37ff
hex#0a37ff
rgbrgb(10, 55, 255)
hslhsl(229, 100%, 52%)
oklchoklch(0.491 0.287 264.6)
Closest name: C64 Blue (#003aff)Relative luminance 0.1002

Tints & shades

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

Harmonies

Complementary

Open in tool →

#ffd20a

#0ab1ff · #580aff

#ff0a37 · #37ff0a

Split-complementary

Open in tool →

#ff580a · #b1ff0a

#ff0ab1 · #ffd20a · #0aff58

Contrast

#0a37ff as textRatioAAAA largeAAAFix
Aaon white
6.99:1passpassfail
  • AAA: use #0533ff as the text (7.18:1)
Aaon black
3:1failpassfail
  • AA: use #4265ff as the text (4.54:1)
  • AAA: use #758fff as the text (7.13:1)
  • AA: or shift the background to #d1d1d1 (4.58:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0a37ff 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

#0a37ff reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0a37ff
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 #0a37ff and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0a37ff-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