Color

#01a4e4

#01a4e4
hex#01a4e4
rgbrgb(1, 164, 228)
hslhsl(197, 99%, 45%)
oklchoklch(0.679 0.145 235.4)
Closest name: Blue Burst (#309cd0)Relative luminance 0.3216

Tints & shades

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

Harmonies

Complementary

Open in tool →

#e44201

#01e4b3 · #0132e4

#e401a4 · #a4e401

Split-complementary

Open in tool →

#e40132 · #e4b301

#b301e4 · #e44201 · #32e401

Contrast

#01a4e4 as textRatioAAAA largeAAAFix
Aaon white
2.83:1failfailfail
  • AA: use #017cad as the text (4.68:1)
  • AAA: use #015f84 as the text (7.07:1)
  • AA: or shift the background to #303030 (4.67:1)
  • AAA: or shift the background to #0a0a0a (7.01:1)
Aaon black
7.43:1passpasspassPasses 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 #01a4e4 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

#01a4e4 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #01a4e4
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 #01a4e4 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/01a4e4-9cb4c4-df4e6b-1f232d-e9f1ef?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