Color

#0a91eb

#0a91eb
hex#0a91eb
rgbrgb(10, 145, 235)
hslhsl(204, 92%, 48%)
oklchoklch(0.64 0.167 247.4)
Closest name: Fresh Blue of Bel Air (#069af3)Relative luminance 0.2631

Tints & shades

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

Harmonies

Complementary

Open in tool →

#eb640a

#0aebd4 · #0a20eb

#eb0a91 · #91eb0a

Split-complementary

Open in tool →

#eb0a20 · #ebd40a

#d40aeb · #eb640a · #20eb0a

Contrast

#0a91eb as textRatioAAAA largeAAAFix
Aaon white
3.35:1failpassfail
  • AA: use #0879c4 as the text (4.62:1)
  • AAA: use #065b93 as the text (7.18:1)
  • AA: or shift the background to #262626 (4.51:1)
Aaon black
6.26:1passpassfail
  • AAA: use #149bf5 as the text (7.04:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0a91eb 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

#0a91eb reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0a91eb
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 #0a91eb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0a91eb-9cafc4-df4e5a-1f222d-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