Color

#10a8ea

#10a8ea
hex#10a8ea
rgbrgb(16, 168, 234)
hslhsl(198, 87%, 49%)
oklchoklch(0.692 0.147 236.1)
Closest name: Cerulean (#55aaee)Relative luminance 0.3406

Tints & shades

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

Harmonies

Complementary

Open in tool →

#ea5110

#10eabe · #103cea

#ea10a8 · #a8ea10

Split-complementary

Open in tool →

#ea103c · #eabe10

#be10ea · #ea5110 · #3cea10

Contrast

#10a8ea as textRatioAAAA largeAAAFix
Aaon white
2.69:1failfailfail
  • AA: use #0c7cac as the text (4.67:1)
  • AAA: use #095d81 as the text (7.26:1)
  • AA: or shift the background to #333333 (4.7:1)
  • AAA: or shift the background to #0f0f0f (7.13:1)
Aaon black
7.81:1passpasspassPasses AAA — no fix needed.

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #10a8ea as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Palettes built around it

Fonts for this mood

#10a8ea reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #10a8ea
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 #10a8ea and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/10a8ea-9cb3c4-df4e69-1f232d-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