Color

#0a58cd

#0a58cd
hex#0a58cd
rgbrgb(10, 88, 205)
hslhsl(216, 91%, 42%)
oklchoklch(0.494 0.194 260.1)
Closest name: Blasphemous Blue (#3356aa)Relative luminance 0.1145

Tints & shades

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

Harmonies

Complementary

Open in tool →

#cd7f0a

#0ab9cd · #1d0acd

#cd0a58 · #58cd0a

Split-complementary

Open in tool →

#cd1d0a · #b9cd0a

#cd0ab9 · #cd7f0a · #0acd1d

Contrast

#0a58cd as textRatioAAAA largeAAAFix
Aaon white
6.38:1passpassfail
  • AAA: use #0951be as the text (7.16:1)
Aaon black
3.29:1failpassfail
  • AA: use #156ef4 as the text (4.57:1)
  • AAA: use #5596f7 as the text (7.09:1)
  • AA: or shift the background to #d9d9d9 (4.52:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0a58cd as the background.

Brands using this color

Fonts for this mood

#0a58cd reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0a58cd
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 #0a58cd and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0a58cd-9ca7c4-df5f4e-201f2d-e9f0f1?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